2120154039 has 12 divisors (see below), whose sum is σ = 3065220600. Its totient is φ = 1412154864.

The previous prime is 2120154037. The next prime is 2120154041. The reversal of 2120154039 is 9304510212.

It is an interprime number because it is at equal distance from previous prime (2120154037) and next prime (2120154041).

It is not a de Polignac number, because 2120154039 - 2¹ = 2120154037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120154037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96229 + ... + 116190.

It is an arithmetic number, because the mean of its divisors is an integer number (255435050).

Almost surely, 2^2120154039 is an apocalyptic number.

2120154039 is a deficient number, since it is larger than the sum of its proper divisors (945066561).

2120154039 is a wasteful number, since it uses less digits than its factorization.

2120154039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213534 (or 213531 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2120154039 is about 46045.1304591484. The cubic root of 2120154039 is about 1284.6627706973.

The spelling of 2120154039 in words is "two billion, one hundred twenty million, one hundred fifty-four thousand, thirty-nine".