145515201 has 16 divisors (see below), whose sum is σ = 209563200. Its totient is φ = 89282880.

The previous prime is 145515179. The next prime is 145515211. The reversal of 145515201 is 102515541.

It is not a de Polignac number, because 145515201 - 2⁵ = 145515169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145515211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8266 + ... + 18956.

It is an arithmetic number, because the mean of its divisors is an integer number (13097700).

Almost surely, 2^145515201 is an apocalyptic number.

It is an amenable number.

145515201 is a deficient number, since it is larger than the sum of its proper divisors (64047999).

145515201 is a wasteful number, since it uses less digits than its factorization.

145515201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11056.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 145515201 is about 12062.9681670806. The cubic root of 145515201 is about 525.9802710099.

The spelling of 145515201 in words is "one hundred forty-five million, five hundred fifteen thousand, two hundred one".