147807493 has 4 divisors (see below), whose sum is σ = 148749100. Its totient is φ = 146865888.

The previous prime is 147807487. The next prime is 147807497. The reversal of 147807493 is 394708741.

147807493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91527489 + 56280004 = 9567^2 + 7502^2 .

It is a cyclic number.

It is not a de Polignac number, because 147807493 - 2¹⁷ = 147676421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147807497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470568 + ... + 470881.

It is an arithmetic number, because the mean of its divisors is an integer number (37187275).

Almost surely, 2^147807493 is an apocalyptic number.

It is an amenable number.

147807493 is a deficient number, since it is larger than the sum of its proper divisors (941607).

147807493 is an equidigital number, since it uses as much as digits as its factorization.

147807493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941606.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 147807493 is about 12157.6104971331. The cubic root of 147807493 is about 528.7278054795.

The spelling of 147807493 in words is "one hundred forty-seven million, eight hundred seven thousand, four hundred ninety-three".