140009156 has 24 divisors (see below), whose sum is σ = 281023680. Its totient is φ = 59788512.

The previous prime is 140009117. The next prime is 140009167. The reversal of 140009156 is 651900041.

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, 911 + ... + 16758.

It is an arithmetic number, because the mean of its divisors is an integer number (11709320).

Almost surely, 2^140009156 is an apocalyptic number.

It is an amenable number.

140009156 is an abundant number, since it is smaller than the sum of its proper divisors (141014524).

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

140009156 is a wasteful number, since it uses less digits than its factorization.

140009156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17963 (or 17961 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 140009156 is about 11832.5464714912. The cubic root of 140009156 is about 519.2607295755.

Adding to 140009156 its reverse (651900041), we get a palindrome (791909197).

The spelling of 140009156 in words is "one hundred forty million, nine thousand, one hundred fifty-six".