140215625 has 24 divisors (see below), whose sum is σ = 191237760. Its totient is φ = 101950000.

The previous prime is 140215597. The next prime is 140215627. The reversal of 140215625 is 526512041.

It is not a de Polignac number, because 140215625 - 2¹⁸ = 139953481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140215594 and 140215603.

It is not an unprimeable number, because it can be changed into a prime (140215627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32336 + ... + 36414.

It is an arithmetic number, because the mean of its divisors is an integer number (7968240).

Almost surely, 2^140215625 is an apocalyptic number.

It is an amenable number.

140215625 is a deficient number, since it is larger than the sum of its proper divisors (51022135).

140215625 is an frugal number, since it uses more digits than its factorization.

140215625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115 (or 4095 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 140215625 is about 11841.2678797500. The cubic root of 140215625 is about 519.5158523806.

Adding to 140215625 its reverse (526512041), we get a palindrome (666727666).

The spelling of 140215625 in words is "one hundred forty million, two hundred fifteen thousand, six hundred twenty-five".