149392093 has 4 divisors (see below), whose sum is σ = 149545980. Its totient is φ = 149238208.

The previous prime is 149392049. The next prime is 149392099. The reversal of 149392093 is 390293941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 390293941 = 877 ⋅445033.

It can be written as a sum of positive squares in 2 ways, for example, as 56520324 + 92871769 = 7518^2 + 9637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149392093 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 (149392099) 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, 75478 + ... + 77431.

It is an arithmetic number, because the mean of its divisors is an integer number (37386495).

Almost surely, 2^149392093 is an apocalyptic number.

It is an amenable number.

149392093 is a deficient number, since it is larger than the sum of its proper divisors (153887).

149392093 is an equidigital number, since it uses as much as digits as its factorization.

149392093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153886.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 149392093 is about 12222.6058187279. The cubic root of 149392093 is about 530.6105376646.

The spelling of 149392093 in words is "one hundred forty-nine million, three hundred ninety-two thousand, ninety-three".