157188842 has 8 divisors (see below), whose sum is σ = 235956000. Its totient is φ = 78536844.

The previous prime is 157188841. The next prime is 157188847. The reversal of 157188842 is 248881751.

157188842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 157188793 and 157188802.

It is not an unprimeable number, because it can be changed into a prime (157188841) 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, 25292 + ... + 30887.

It is an arithmetic number, because the mean of its divisors is an integer number (29494500).

Almost surely, 2^157188842 is an apocalyptic number.

157188842 is a deficient number, since it is larger than the sum of its proper divisors (78767158).

157188842 is a wasteful number, since it uses less digits than its factorization.

157188842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57580.

The product of its digits is 143360, while the sum is 44.

The square root of 157188842 is about 12537.4974376867. The cubic root of 157188842 is about 539.6852784302.

The spelling of 157188842 in words is "one hundred fifty-seven million, one hundred eighty-eight thousand, eight hundred forty-two".