145039875 has 32 divisors (see below), whose sum is σ = 249687360. Its totient is φ = 74681600.

The previous prime is 145039849. The next prime is 145039943. The reversal of 145039875 is 578930541.

It is not a de Polignac number, because 145039875 - 2¹⁴ = 145023491 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4207 + ... + 17543.

It is an arithmetic number, because the mean of its divisors is an integer number (7802730).

Almost surely, 2^145039875 is an apocalyptic number.

145039875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145039875 is a deficient number, since it is larger than the sum of its proper divisors (104647485).

145039875 is a wasteful number, since it uses less digits than its factorization.

145039875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13384 (or 13374 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 145039875 is about 12043.2501842318. The cubic root of 145039875 is about 525.4069407243.

The spelling of 145039875 in words is "one hundred forty-five million, thirty-nine thousand, eight hundred seventy-five".