140040402129 has 12 divisors (see below), whose sum is σ = 205051548676. Its totient is φ = 92081359872.

The previous prime is 140040402113. The next prime is 140040402181. The reversal of 140040402129 is 921204040041.

It is a happy number.

140040402129 is a `hidden beast` number, since 1 + 40 + 0 + 404 + 0 + 212 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 119472539904 + 20567862225 = 345648^2 + 143415^2 .

It is not a de Polignac number, because 140040402129 - 2⁴ = 140040402113 is a prime.

It is a super-2 number, since 2×140040402129² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140040402109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106574992 + ... + 106576305.

Almost surely, 2^140040402129 is an apocalyptic number.

It is an amenable number.

140040402129 is a deficient number, since it is larger than the sum of its proper divisors (65011146547).

140040402129 is a wasteful number, since it uses less digits than its factorization.

140040402129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213151376 (or 213151373 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 140040402129 in words is "one hundred forty billion, forty million, four hundred two thousand, one hundred twenty-nine".