40143040136 has 8 divisors (see below), whose sum is σ = 75268200270. Its totient is φ = 20071520064.

The previous prime is 40143040123. The next prime is 40143040141. The reversal of 40143040136 is 63104034104.

It can be written as a sum of positive squares in only one way, i.e., 25726235236 + 14416804900 = 160394^2 + 120070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40143040136² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2508940001 + ... + 2508940016.

Almost surely, 2^40143040136 is an apocalyptic number.

It is an amenable number.

40143040136 is a deficient number, since it is larger than the sum of its proper divisors (35125160134).

40143040136 is a wasteful number, since it uses less digits than its factorization.

40143040136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017880023 (or 5017880019 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 40143040136 in words is "forty billion, one hundred forty-three million, forty thousand, one hundred thirty-six".