2640150139 has 8 divisors (see below), whose sum is σ = 2880697968. Its totient is φ = 2399691360.

The previous prime is 2640150137. The next prime is 2640150157. The reversal of 2640150139 is 9310510462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2640150139 - 2¹ = 2640150137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2640150139.

It is not an unprimeable number, because it can be changed into a prime (2640150131) 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, 49929 + ... + 88165.

It is an arithmetic number, because the mean of its divisors is an integer number (360087246).

Almost surely, 2^2640150139 is an apocalyptic number.

2640150139 is a deficient number, since it is larger than the sum of its proper divisors (240547829).

2640150139 is a wasteful number, since it uses less digits than its factorization.

2640150139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44525.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2640150139 is about 51382.3913320507. The cubic root of 2640150139 is about 1382.1108456074.

The spelling of 2640150139 in words is "two billion, six hundred forty million, one hundred fifty thousand, one hundred thirty-nine".