145372275 has 18 divisors (see below), whose sum is σ = 260378300. Its totient is φ = 77531760.

The previous prime is 145372231. The next prime is 145372291. The reversal of 145372275 is 572273541.

145372275 is a `hidden beast` number, since 14 + 5 + 372 + 275 = 666.

It is not a de Polignac number, because 145372275 - 2⁷ = 145372147 is a prime.

It is a super-2 number, since 2×145372275² = 42266196677351250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 322825 + ... + 323274.

Almost surely, 2^145372275 is an apocalyptic number.

145372275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145372275 is a deficient number, since it is larger than the sum of its proper divisors (115006025).

145372275 is a wasteful number, since it uses less digits than its factorization.

145372275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646115 (or 646107 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 145372275 is about 12057.0425478224. The cubic root of 145372275 is about 525.8080074892.

The spelling of 145372275 in words is "one hundred forty-five million, three hundred seventy-two thousand, two hundred seventy-five".