151166987 has 4 divisors (see below), whose sum is σ = 152988360. Its totient is φ = 149345616.

The previous prime is 151166963. The next prime is 151166999. The reversal of 151166987 is 789661151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789661151 = 53 ⋅14899267.

It is a cyclic number.

It is not a de Polignac number, because 151166987 - 2⁸ = 151166731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151166947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910562 + ... + 910727.

It is an arithmetic number, because the mean of its divisors is an integer number (38247090).

Almost surely, 2^151166987 is an apocalyptic number.

151166987 is a deficient number, since it is larger than the sum of its proper divisors (1821373).

151166987 is an equidigital number, since it uses as much as digits as its factorization.

151166987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821372.

The product of its digits is 90720, while the sum is 44.

The square root of 151166987 is about 12294.9984546563. The cubic root of 151166987 is about 532.7036252408.

The spelling of 151166987 in words is "one hundred fifty-one million, one hundred sixty-six thousand, nine hundred eighty-seven".