140033907 has 24 divisors (see below), whose sum is σ = 224650800. Its totient is φ = 86171904.

The previous prime is 140033869. The next prime is 140033909. The reversal of 140033907 is 709330041.

It is not a de Polignac number, because 140033907 - 2⁸ = 140033651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (140033909) 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, 10782 + ... + 19907.

It is an arithmetic number, because the mean of its divisors is an integer number (9360450).

Almost surely, 2^140033907 is an apocalyptic number.

140033907 is a deficient number, since it is larger than the sum of its proper divisors (84616893).

140033907 is a wasteful number, since it uses less digits than its factorization.

140033907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30724 (or 30705 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 140033907 is about 11833.5923117201. The cubic root of 140033907 is about 519.2913263008.

Adding to 140033907 its reverse (709330041), we get a palindrome (849363948).

The spelling of 140033907 in words is "one hundred forty million, thirty-three thousand, nine hundred seven".