140013252 has 24 divisors (see below), whose sum is σ = 362997600. Its totient is φ = 46671048.

The previous prime is 140013187. The next prime is 140013271. The reversal of 140013252 is 252310041.

140013252 is a `hidden beast` number, since 1 + 400 + 13 + 252 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648102 + ... + 648317.

It is an arithmetic number, because the mean of its divisors is an integer number (15124900).

Almost surely, 2^140013252 is an apocalyptic number.

140013252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140013252 is an abundant number, since it is smaller than the sum of its proper divisors (222984348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140013252 is a wasteful number, since it uses less digits than its factorization.

140013252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296432 (or 1296424 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 140013252 is about 11832.7195521571. The cubic root of 140013252 is about 519.2657932234.

Adding to 140013252 its reverse (252310041), we get a palindrome (392323293).

The spelling of 140013252 in words is "one hundred forty million, thirteen thousand, two hundred fifty-two".