157872038 has 4 divisors (see below), whose sum is σ = 236808060. Its totient is φ = 78936018.

The previous prime is 157872037. The next prime is 157872061. The reversal of 157872038 is 830278751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 830278751 = 1583 ⋅524497.

It is a junction number, because it is equal to n+sod(n) for n = 157871986 and 157872004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157872037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39468008 + ... + 39468011.

It is an arithmetic number, because the mean of its divisors is an integer number (59202015).

Almost surely, 2^157872038 is an apocalyptic number.

157872038 is a deficient number, since it is larger than the sum of its proper divisors (78936022).

157872038 is an equidigital number, since it uses as much as digits as its factorization.

157872038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78936021.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 157872038 is about 12564.7140039079. The cubic root of 157872038 is about 540.4660334426.

The spelling of 157872038 in words is "one hundred fifty-seven million, eight hundred seventy-two thousand, thirty-eight".