145074215 has 64 divisors (see below), whose sum is σ = 220147200. Its totient is φ = 90201600.

The previous prime is 145074199. The next prime is 145074221. The reversal of 145074215 is 512470541.

It is not a de Polignac number, because 145074215 - 2⁴ = 145074199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 801425 + ... + 801605.

It is an arithmetic number, because the mean of its divisors is an integer number (3439800).

Almost surely, 2^145074215 is an apocalyptic number.

145074215 is a deficient number, since it is larger than the sum of its proper divisors (75072985).

145074215 is a wasteful number, since it uses less digits than its factorization.

145074215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 145074215 is about 12044.6757947236. The cubic root of 145074215 is about 525.4484030017.

The spelling of 145074215 in words is "one hundred forty-five million, seventy-four thousand, two hundred fifteen".