157327231 has 8 divisors (see below), whose sum is σ = 167448384. Its totient is φ = 147302400.

The previous prime is 157327223. The next prime is 157327237. The reversal of 157327231 is 132723751.

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

It is a cyclic number.

It is not a de Polignac number, because 157327231 - 2³ = 157327223 is a prime.

It is a super-2 number, since 2×157327231² = 49503715228254722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157327193 and 157327202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157327237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20695 + ... + 27256.

It is an arithmetic number, because the mean of its divisors is an integer number (20931048).

Almost surely, 2^157327231 is an apocalyptic number.

157327231 is a deficient number, since it is larger than the sum of its proper divisors (10121153).

157327231 is a wasteful number, since it uses less digits than its factorization.

157327231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48161.

The product of its digits is 8820, while the sum is 31.

The square root of 157327231 is about 12543.0152276078. The cubic root of 157327231 is about 539.8436115488.

The spelling of 157327231 in words is "one hundred fifty-seven million, three hundred twenty-seven thousand, two hundred thirty-one".