157561435 has 8 divisors (see below), whose sum is σ = 189176400. Its totient is φ = 125980704.

The previous prime is 157561427. The next prime is 157561441. The reversal of 157561435 is 534165751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157561435 - 2³ = 157561427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157561394 and 157561403.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2989 + ... + 18001.

It is an arithmetic number, because the mean of its divisors is an integer number (23647050).

Almost surely, 2^157561435 is an apocalyptic number.

157561435 is a deficient number, since it is larger than the sum of its proper divisors (31614965).

157561435 is a wasteful number, since it uses less digits than its factorization.

157561435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17117.

The product of its digits is 63000, while the sum is 37.

The square root of 157561435 is about 12552.3477883621. The cubic root of 157561435 is about 540.1113567788. Note that the first 3 decimals are identical.

The spelling of 157561435 in words is "one hundred fifty-seven million, five hundred sixty-one thousand, four hundred thirty-five".