145887315 has 16 divisors (see below), whose sum is σ = 266765568. Its totient is φ = 66691296.

The previous prime is 145887283. The next prime is 145887397. The reversal of 145887315 is 513788541.

It is not a de Polignac number, because 145887315 - 2⁵ = 145887283 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694597 + ... + 694806.

It is an arithmetic number, because the mean of its divisors is an integer number (16672848).

Almost surely, 2^145887315 is an apocalyptic number.

145887315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145887315 is a deficient number, since it is larger than the sum of its proper divisors (120878253).

145887315 is a wasteful number, since it uses less digits than its factorization.

145887315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389418.

The product of its digits is 134400, while the sum is 42.

The square root of 145887315 is about 12078.3821350378. The cubic root of 145887315 is about 526.4282380059.

The spelling of 145887315 in words is "one hundred forty-five million, eight hundred eighty-seven thousand, three hundred fifteen".