40015143154 has 32 divisors (see below), whose sum is σ = 72274366080. Its totient is φ = 16231767552.

The previous prime is 40015143149. The next prime is 40015143163. The reversal of 40015143154 is 45134151004.

It is a super-2 number, since 2×40015143154² (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 15 ways as a sum of consecutive naturals, for example, 221922 + ... + 359554.

It is an arithmetic number, because the mean of its divisors is an integer number (2258573940).

Almost surely, 2^40015143154 is an apocalyptic number.

40015143154 is a deficient number, since it is larger than the sum of its proper divisors (32259222926).

40015143154 is a wasteful number, since it uses less digits than its factorization.

40015143154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138754.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 40015143154 its reverse (45134151004), we get a palindrome (85149294158).

The spelling of 40015143154 in words is "forty billion, fifteen million, one hundred forty-three thousand, one hundred fifty-four".