157559442 has 16 divisors (see below), whose sum is σ = 316135872. Its totient is φ = 52350320.

The previous prime is 157559429. The next prime is 157559443. The reversal of 157559442 is 244955751.

It is a junction number, because it is equal to n+sod(n) for n = 157559394 and 157559403.

It is not an unprimeable number, because it can be changed into a prime (157559443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40353 + ... + 44084.

It is an arithmetic number, because the mean of its divisors is an integer number (19758492).

Almost surely, 2^157559442 is an apocalyptic number.

157559442 is an abundant number, since it is smaller than the sum of its proper divisors (158576430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157559442 is a wasteful number, since it uses less digits than its factorization.

157559442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84753.

The product of its digits is 252000, while the sum is 42.

The square root of 157559442 is about 12552.2684005721. The cubic root of 157559442 is about 540.1090794735.

The spelling of 157559442 in words is "one hundred fifty-seven million, five hundred fifty-nine thousand, four hundred forty-two".