2139526154 has 16 divisors (see below), whose sum is σ = 3271495392. Its totient is φ = 1049048208.

The previous prime is 2139526133. The next prime is 2139526159. The reversal of 2139526154 is 4516259312.

It is not an unprimeable number, because it can be changed into a prime (2139526159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280637 + ... + 288159.

It is an arithmetic number, because the mean of its divisors is an integer number (204468462).

Almost surely, 2^2139526154 is an apocalyptic number.

2139526154 is a deficient number, since it is larger than the sum of its proper divisors (1131969238).

2139526154 is a wasteful number, since it uses less digits than its factorization.

2139526154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10261.

The product of its digits is 64800, while the sum is 38.

The square root of 2139526154 is about 46255.0122040844. The cubic root of 2139526154 is about 1288.5636224697.

The spelling of 2139526154 in words is "two billion, one hundred thirty-nine million, five hundred twenty-six thousand, one hundred fifty-four".