140231525 has 24 divisors (see below), whose sum is σ = 200612160. Its totient is φ = 95247360.

The previous prime is 140231479. The next prime is 140231537. The reversal of 140231525 is 525132041.

140231525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-140231525 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140231525.

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, 14981 + ... + 22469.

It is an arithmetic number, because the mean of its divisors is an integer number (8358840).

Almost surely, 2^140231525 is an apocalyptic number.

It is an amenable number.

140231525 is a deficient number, since it is larger than the sum of its proper divisors (60380635).

140231525 is a wasteful number, since it uses less digits than its factorization.

140231525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7613 (or 7608 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 140231525 is about 11841.9392415263. The cubic root of 140231525 is about 519.5354887796.

Adding to 140231525 its reverse (525132041), we get a palindrome (665363566).

The spelling of 140231525 in words is "one hundred forty million, two hundred thirty-one thousand, five hundred twenty-five".