145202815 has 8 divisors (see below), whose sum is σ = 175070448. Its totient is φ = 115610880.

The previous prime is 145202789. The next prime is 145202821. The reversal of 145202815 is 518202541.

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

It is not a de Polignac number, because 145202815 - 2²⁷ = 10985087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67762 + ... + 69871.

It is an arithmetic number, because the mean of its divisors is an integer number (21883806).

Almost surely, 2^145202815 is an apocalyptic number.

145202815 is a deficient number, since it is larger than the sum of its proper divisors (29867633).

145202815 is a wasteful number, since it uses less digits than its factorization.

145202815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137849.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 145202815 is about 12050.0130705323. The cubic root of 145202815 is about 525.6036171405.

The spelling of 145202815 in words is "one hundred forty-five million, two hundred two thousand, eight hundred fifteen".