140512904 has 64 divisors (see below), whose sum is σ = 324777600. Its totient is φ = 55641600.

The previous prime is 140512903. The next prime is 140512937. The reversal of 140512904 is 409215041.

It is not an unprimeable number, because it can be changed into a prime (140512903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42014 + ... + 45234.

It is an arithmetic number, because the mean of its divisors is an integer number (5074650).

Almost surely, 2^140512904 is an apocalyptic number.

140512904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140512904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162388800).

140512904 is an abundant number, since it is smaller than the sum of its proper divisors (184264696).

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

140512904 is a wasteful number, since it uses less digits than its factorization.

140512904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3294 (or 3290 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 140512904 is about 11853.8139010194. The cubic root of 140512904 is about 519.8827447652.

Adding to 140512904 its reverse (409215041), we get a palindrome (549727945).

The spelling of 140512904 in words is "one hundred forty million, five hundred twelve thousand, nine hundred four".