40005237154 has 4 divisors (see below), whose sum is σ = 60007855734. Its totient is φ = 20002618576.

The previous prime is 40005237127. The next prime is 40005237161. The reversal of 40005237154 is 45173250004.

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., 32318331529 + 7686905625 = 179773^2 + 87675^2 .

It is an unprimeable number.

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, 10001309287 + ... + 10001309290.

Almost surely, 2^40005237154 is an apocalyptic number.

40005237154 is a deficient number, since it is larger than the sum of its proper divisors (20002618580).

40005237154 is a wasteful number, since it uses less digits than its factorization.

40005237154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20002618579.

The product of its (nonzero) digits is 16800, while the sum is 31.

Adding to 40005237154 its reverse (45173250004), we get a palindrome (85178487158).

The spelling of 40005237154 in words is "forty billion, five million, two hundred thirty-seven thousand, one hundred fifty-four".