145000087 has 16 divisors (see below), whose sum is σ = 153498240. Its totient is φ = 136777312.

The previous prime is 145000081. The next prime is 145000099. The reversal of 145000087 is 780000541.

It is a cyclic number.

It is not a de Polignac number, because 145000087 - 2²³ = 136611479 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 (145000081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257268 + ... + 257830.

It is an arithmetic number, because the mean of its divisors is an integer number (9593640).

Almost surely, 2^145000087 is an apocalyptic number.

145000087 is a deficient number, since it is larger than the sum of its proper divisors (8498153).

145000087 is a wasteful number, since it uses less digits than its factorization.

145000087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 145000087 is about 12041.5981912701. The cubic root of 145000087 is about 525.3588923210.

The spelling of 145000087 in words is "one hundred forty-five million, eighty-seven", and thus it is an aban number.