157718042 has 8 divisors (see below), whose sum is σ = 237085056. Its totient is φ = 78689692.

The previous prime is 157718017. The next prime is 157718053. The reversal of 157718042 is 240817751.

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

It is a junction number, because it is equal to n+sod(n) for n = 157717993 and 157718011.

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 3 ways as a sum of consecutive naturals, for example, 83498 + ... + 85365.

It is an arithmetic number, because the mean of its divisors is an integer number (29635632).

Almost surely, 2^157718042 is an apocalyptic number.

157718042 is a deficient number, since it is larger than the sum of its proper divisors (79367014).

157718042 is a wasteful number, since it uses less digits than its factorization.

157718042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169332.

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 157718042 is about 12558.5843947477. The cubic root of 157718042 is about 540.2902440605.

The spelling of 157718042 in words is "one hundred fifty-seven million, seven hundred eighteen thousand, forty-two".