40140516154 has 4 divisors (see below), whose sum is σ = 60210774234. Its totient is φ = 20070258076.

The previous prime is 40140516151. The next prime is 40140516167. The reversal of 40140516154 is 45161504104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31019311129 + 9121205025 = 176123^2 + 95505^2 .

It is a super-2 number, since 2×40140516154² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40140516151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10035129037 + ... + 10035129040.

Almost surely, 2^40140516154 is an apocalyptic number.

40140516154 is a deficient number, since it is larger than the sum of its proper divisors (20070258080).

40140516154 is a wasteful number, since it uses less digits than its factorization.

40140516154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20070258079.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 40140516154 in words is "forty billion, one hundred forty million, five hundred sixteen thousand, one hundred fifty-four".