145857375 has 64 divisors (see below), whose sum is σ = 281548800. Its totient is φ = 74368800.

The previous prime is 145857353. The next prime is 145857389. The reversal of 145857375 is 573758541.

It is a happy number.

145857375 is a `hidden beast` number, since 1 + 4 + 5 + 8 + 573 + 75 = 666.

It is not a de Polignac number, because 145857375 - 2⁵ = 145857343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 145857375.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76686 + ... + 78564.

It is an arithmetic number, because the mean of its divisors is an integer number (4399200).

Almost surely, 2^145857375 is an apocalyptic number.

145857375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145857375 is a deficient number, since it is larger than the sum of its proper divisors (135691425).

145857375 is a wasteful number, since it uses less digits than its factorization.

145857375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926 (or 1910 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 145857375 is about 12077.1426670384. The cubic root of 145857375 is about 526.3922231319.

The spelling of 145857375 in words is "one hundred forty-five million, eight hundred fifty-seven thousand, three hundred seventy-five".