180120157 has 8 divisors (see below), whose sum is σ = 206586432. Its totient is φ = 153837600.

The previous prime is 180120119. The next prime is 180120169. The reversal of 180120157 is 751021081.

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

It is a de Polignac number, because none of the positive numbers 2^k-180120157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180120557) 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, 43819 + ... + 47752.

It is an arithmetic number, because the mean of its divisors is an integer number (25823304).

Almost surely, 2^180120157 is an apocalyptic number.

It is an amenable number.

180120157 is a deficient number, since it is larger than the sum of its proper divisors (26466275).

180120157 is an equidigital number, since it uses as much as digits as its factorization.

180120157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91859.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 180120157 is about 13420.8851049400. The cubic root of 180120157 is about 564.7472250124.

The spelling of 180120157 in words is "one hundred eighty million, one hundred twenty thousand, one hundred fifty-seven".