157074433 has 4 divisors (see below), whose sum is σ = 157339908. Its totient is φ = 156808960.

The previous prime is 157074431. The next prime is 157074443. The reversal of 157074433 is 334470751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 334470751 = 109 ⋅3068539.

It can be written as a sum of positive squares in 2 ways, for example, as 94711824 + 62362609 = 9732^2 + 7897^2 .

It is a cyclic number.

It is not a de Polignac number, because 157074433 - 2¹ = 157074431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157074431) 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, 131848 + ... + 133033.

It is an arithmetic number, because the mean of its divisors is an integer number (39334977).

Almost surely, 2^157074433 is an apocalyptic number.

It is an amenable number.

157074433 is a deficient number, since it is larger than the sum of its proper divisors (265475).

157074433 is an equidigital number, since it uses as much as digits as its factorization.

157074433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265474.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 157074433 is about 12532.9339342390. The cubic root of 157074433 is about 539.5543110356.

The spelling of 157074433 in words is "one hundred fifty-seven million, seventy-four thousand, four hundred thirty-three".