157906433 has 4 divisors (see below), whose sum is σ = 158009280. Its totient is φ = 157803588.

The previous prime is 157906429. The next prime is 157906439. The reversal of 157906433 is 334609751.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157906433 - 2² = 157906429 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157906439) 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, 49085 + ... + 52202.

It is an arithmetic number, because the mean of its divisors is an integer number (39502320).

Almost surely, 2^157906433 is an apocalyptic number.

It is an amenable number.

157906433 is a deficient number, since it is larger than the sum of its proper divisors (102847).

157906433 is a wasteful number, since it uses less digits than its factorization.

157906433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102846.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 157906433 is about 12566.0826433698. The cubic root of 157906433 is about 540.5052803745.

The spelling of 157906433 in words is "one hundred fifty-seven million, nine hundred six thousand, four hundred thirty-three".