146247087 has 64 divisors (see below), whose sum is σ = 246343680. Its totient is φ = 75339264.

The previous prime is 146247067. The next prime is 146247097. The reversal of 146247087 is 780742641.

It is not a de Polignac number, because 146247087 - 2²² = 142052783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146247037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 742273 + ... + 742469.

It is an arithmetic number, because the mean of its divisors is an integer number (3849120).

Almost surely, 2^146247087 is an apocalyptic number.

146247087 is a deficient number, since it is larger than the sum of its proper divisors (100096593).

146247087 is a wasteful number, since it uses less digits than its factorization.

146247087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 146247087 is about 12093.2661841208. The cubic root of 146247087 is about 526.8606234741.

The spelling of 146247087 in words is "one hundred forty-six million, two hundred forty-seven thousand, eighty-seven".