145722375 has 32 divisors (see below), whose sum is σ = 269430720. Its totient is φ = 77716800.

The previous prime is 145722359. The next prime is 145722397. The reversal of 145722375 is 573227541.

145722375 is a `hidden beast` number, since 14 + 572 + 2 + 3 + 75 = 666.

It is not a de Polignac number, because 145722375 - 2⁴ = 145722359 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 18214 + ... + 24963.

It is an arithmetic number, because the mean of its divisors is an integer number (8419710).

Almost surely, 2^145722375 is an apocalyptic number.

145722375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145722375 is a deficient number, since it is larger than the sum of its proper divisors (123708345).

145722375 is an equidigital number, since it uses as much as digits as its factorization.

145722375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43201 (or 43185 counting only the distinct ones).

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

The square root of 145722375 is about 12071.5523028316. The cubic root of 145722375 is about 526.2297701745.

It can be divided in two parts, 1457 and 22375, that added together give a palindrome (23832).

The spelling of 145722375 in words is "one hundred forty-five million, seven hundred twenty-two thousand, three hundred seventy-five".