151081187 has 8 divisors (see below), whose sum is σ = 155042160. Its totient is φ = 147133440.

The previous prime is 151081169. The next prime is 151081199. The reversal of 151081187 is 781180151.

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 151081187 - 2¹⁴ = 151064803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151081127) 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, 22403 + ... + 28355.

It is an arithmetic number, because the mean of its divisors is an integer number (19380270).

Almost surely, 2^151081187 is an apocalyptic number.

151081187 is a deficient number, since it is larger than the sum of its proper divisors (3960973).

151081187 is an equidigital number, since it uses as much as digits as its factorization.

151081187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6613.

The product of its (nonzero) digits is 2240, while the sum is 32.

The square root of 151081187 is about 12291.5087357086. The cubic root of 151081187 is about 532.6028214387.

The spelling of 151081187 in words is "one hundred fifty-one million, eighty-one thousand, one hundred eighty-seven".