146640525 has 24 divisors (see below), whose sum is σ = 252989760. Its totient is φ = 74807040.

The previous prime is 146640497. The next prime is 146640551. The reversal of 146640525 is 525046641.

It is not a de Polignac number, because 146640525 - 2⁵ = 146640493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40780 + ... + 44229.

It is an arithmetic number, because the mean of its divisors is an integer number (10541240).

Almost surely, 2^146640525 is an apocalyptic number.

146640525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

146640525 is a deficient number, since it is larger than the sum of its proper divisors (106349235).

146640525 is a wasteful number, since it uses less digits than its factorization.

146640525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85045 (or 85040 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 146640525 is about 12109.5220797520. The cubic root of 146640525 is about 527.3326588230.

The spelling of 146640525 in words is "one hundred forty-six million, six hundred forty thousand, five hundred twenty-five".