157216382 has 4 divisors (see below), whose sum is σ = 235824576. Its totient is φ = 78608190.

The previous prime is 157216369. The next prime is 157216387. The reversal of 157216382 is 283612751.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157216387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39304094 + ... + 39304097.

It is an arithmetic number, because the mean of its divisors is an integer number (58956144).

Almost surely, 2^157216382 is an apocalyptic number.

157216382 is a deficient number, since it is larger than the sum of its proper divisors (78608194).

157216382 is an equidigital number, since it uses as much as digits as its factorization.

157216382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78608193.

The product of its digits is 20160, while the sum is 35.

The square root of 157216382 is about 12538.5956948934. The cubic root of 157216382 is about 539.7167947992.

The spelling of 157216382 in words is "one hundred fifty-seven million, two hundred sixteen thousand, three hundred eighty-two".