147745093 has 4 divisors (see below), whose sum is σ = 147782700. Its totient is φ = 147707488.

The previous prime is 147745049. The next prime is 147745109. The reversal of 147745093 is 390547741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 390547741 = 2153 ⋅181397.

It can be written as a sum of positive squares in 2 ways, for example, as 133471809 + 14273284 = 11553^2 + 3778^2 .

It is a cyclic number.

It is not a de Polignac number, because 147745093 - 2²¹ = 145647941 is a prime.

It is a super-2 number, since 2×147745093² = 43657225011157298, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147745043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12118 + ... + 21031.

It is an arithmetic number, because the mean of its divisors is an integer number (36945675).

Almost surely, 2^147745093 is an apocalyptic number.

It is an amenable number.

147745093 is a deficient number, since it is larger than the sum of its proper divisors (37607).

147745093 is an equidigital number, since it uses as much as digits as its factorization.

147745093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37606.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 147745093 is about 12155.0439324587. The cubic root of 147745093 is about 528.6533905354.

The spelling of 147745093 in words is "one hundred forty-seven million, seven hundred forty-five thousand, ninety-three".