40131542145 has 32 divisors (see below), whose sum is σ = 64517409792. Its totient is φ = 21301337792.

The previous prime is 40131542137. The next prime is 40131542173. The reversal of 40131542145 is 54124513104.

It is a cyclic number.

It is not a de Polignac number, because 40131542145 - 2³ = 40131542137 is a prime.

It is a super-2 number, since 2×40131542145² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4583662 + ... + 4592408.

It is an arithmetic number, because the mean of its divisors is an integer number (2016169056).

Almost surely, 2^40131542145 is an apocalyptic number.

It is an amenable number.

40131542145 is a deficient number, since it is larger than the sum of its proper divisors (24385867647).

40131542145 is a wasteful number, since it uses less digits than its factorization.

40131542145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10181.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 40131542145 in words is "forty billion, one hundred thirty-one million, five hundred forty-two thousand, one hundred forty-five".