157518442 has 8 divisors (see below), whose sum is σ = 237477636. Its totient is φ = 78359232.

The previous prime is 157518419. The next prime is 157518443. The reversal of 157518442 is 244815751.

157518442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 115541001 + 41977441 = 10749^2 + 6479^2 .

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

It is not an unprimeable number, because it can be changed into a prime (157518443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 199503 + ... + 200290.

Almost surely, 2^157518442 is an apocalyptic number.

157518442 is a deficient number, since it is larger than the sum of its proper divisors (79959194).

157518442 is a wasteful number, since it uses less digits than its factorization.

157518442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399992.

The product of its digits is 44800, while the sum is 37.

The square root of 157518442 is about 12550.6351233712. The cubic root of 157518442 is about 540.0622264825.

The spelling of 157518442 in words is "one hundred fifty-seven million, five hundred eighteen thousand, four hundred forty-two".