2123139151 has 4 divisors (see below), whose sum is σ = 2426444752. Its totient is φ = 1819833552.

The previous prime is 2123139149. The next prime is 2123139157. The reversal of 2123139151 is 1519313212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2123139151 - 2¹ = 2123139149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123139157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151652790 + ... + 151652803.

It is an arithmetic number, because the mean of its divisors is an integer number (606611188).

Almost surely, 2^2123139151 is an apocalyptic number.

2123139151 is a deficient number, since it is larger than the sum of its proper divisors (303305601).

2123139151 is an equidigital number, since it uses as much as digits as its factorization.

2123139151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303305600.

The product of its digits is 1620, while the sum is 28.

The square root of 2123139151 is about 46077.5341245601. The cubic root of 2123139151 is about 1285.2654099080.

The spelling of 2123139151 in words is "two billion, one hundred twenty-three million, one hundred thirty-nine thousand, one hundred fifty-one".