157183481 has 8 divisors (see below), whose sum is σ = 193456704. Its totient is φ = 124364880.

The previous prime is 157183471. The next prime is 157183489. The reversal of 157183481 is 184381751.

It is a happy number.

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 157183481 - 2⁶ = 157183417 is a prime.

It is a super-2 number, since 2×157183481² = 49413293398554722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157183489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 863555 + ... + 863736.

It is an arithmetic number, because the mean of its divisors is an integer number (24182088).

Almost surely, 2^157183481 is an apocalyptic number.

It is an amenable number.

157183481 is a deficient number, since it is larger than the sum of its proper divisors (36273223).

157183481 is a wasteful number, since it uses less digits than its factorization.

157183481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727311.

The product of its digits is 26880, while the sum is 38.

The square root of 157183481 is about 12537.2836372158. The cubic root of 157183481 is about 539.6791429530.

The spelling of 157183481 in words is "one hundred fifty-seven million, one hundred eighty-three thousand, four hundred eighty-one".