140153525 has 12 divisors (see below), whose sum is σ = 184013892. Its totient is φ = 105527040.

The previous prime is 140153509. The next prime is 140153537. The reversal of 140153525 is 525351041.

140153525 = 349² + 350² + ... + 773².

It can be written as a sum of positive squares in 6 ways, for example, as 14915044 + 125238481 = 3862^2 + 11191^2 .

It is not a de Polignac number, because 140153525 - 2⁴ = 140153509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140153494 and 140153503.

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 11 ways as a sum of consecutive naturals, for example, 164462 + ... + 165311.

It is an arithmetic number, because the mean of its divisors is an integer number (15334491).

Almost surely, 2^140153525 is an apocalyptic number.

It is an amenable number.

140153525 is a deficient number, since it is larger than the sum of its proper divisors (43860367).

140153525 is a wasteful number, since it uses less digits than its factorization.

140153525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329800 (or 329795 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 140153525 is about 11838.6454039303. The cubic root of 140153525 is about 519.4391450512.

The spelling of 140153525 in words is "one hundred forty million, one hundred fifty-three thousand, five hundred twenty-five".