145517375 has 16 divisors (see below), whose sum is σ = 185835936. Its totient is φ = 113702400.

The previous prime is 145517369. The next prime is 145517377. The reversal of 145517375 is 573715541.

It is not a de Polignac number, because 145517375 - 2²⁶ = 78408511 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 (145517377) 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, 8162 + ... + 18911.

It is an arithmetic number, because the mean of its divisors is an integer number (11614746).

Almost surely, 2^145517375 is an apocalyptic number.

145517375 is a deficient number, since it is larger than the sum of its proper divisors (40318561).

145517375 is an equidigital number, since it uses as much as digits as its factorization.

145517375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27131 (or 27121 counting only the distinct ones).

The product of its digits is 73500, while the sum is 38.

The square root of 145517375 is about 12063.0582772363. The cubic root of 145517375 is about 525.9828903821.

The spelling of 145517375 in words is "one hundred forty-five million, five hundred seventeen thousand, three hundred seventy-five".