151231287 has 8 divisors (see below), whose sum is σ = 203492080. Its totient is φ = 99895680.

The previous prime is 151231231. The next prime is 151231291. The reversal of 151231287 is 782132151.

151231287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 151231287 - 2⁷ = 151231159 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 (151231217) 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, 230914 + ... + 231567.

It is an arithmetic number, because the mean of its divisors is an integer number (25436510).

Almost surely, 2^151231287 is an apocalyptic number.

151231287 is a deficient number, since it is larger than the sum of its proper divisors (52260793).

151231287 is a wasteful number, since it uses less digits than its factorization.

151231287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462593.

The product of its digits is 3360, while the sum is 30.

The square root of 151231287 is about 12297.6130610782. The cubic root of 151231287 is about 532.7791443480.

The spelling of 151231287 in words is "one hundred fifty-one million, two hundred thirty-one thousand, two hundred eighty-seven".