145872275 has 6 divisors (see below), whose sum is σ = 180881652. Its totient is φ = 116697800.

The previous prime is 145872247. The next prime is 145872281. The reversal of 145872275 is 572278541.

145872275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145872275 - 2²² = 141677971 is a prime.

It is a super-2 number, since 2×145872275² = 42557441227351250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2917421 + ... + 2917470.

It is an arithmetic number, because the mean of its divisors is an integer number (30146942).

Almost surely, 2^145872275 is an apocalyptic number.

145872275 is a deficient number, since it is larger than the sum of its proper divisors (35009377).

145872275 is an equidigital number, since it uses as much as digits as its factorization.

145872275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5834901 (or 5834896 counting only the distinct ones).

The product of its digits is 156800, while the sum is 41.

The square root of 145872275 is about 12077.7595190499. The cubic root of 145872275 is about 526.4101469818.

The spelling of 145872275 in words is "one hundred forty-five million, eight hundred seventy-two thousand, two hundred seventy-five".