2142501157 has 4 divisors (see below), whose sum is σ = 2188086336. Its totient is φ = 2096915980.

The previous prime is 2142501149. The next prime is 2142501167. The reversal of 2142501157 is 7511052412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2142501157 - 2³ = 2142501149 is a prime.

It is a super-2 number, since 2×2142501157² = 9180622415492677298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142501107) 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, 22792519 + ... + 22792612.

It is an arithmetic number, because the mean of its divisors is an integer number (547021584).

Almost surely, 2^2142501157 is an apocalyptic number.

It is an amenable number.

2142501157 is a deficient number, since it is larger than the sum of its proper divisors (45585179).

2142501157 is an equidigital number, since it uses as much as digits as its factorization.

2142501157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45585178.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 2142501157 is about 46287.1597422006. The cubic root of 2142501157 is about 1289.1605934693.

Adding to 2142501157 its reverse (7511052412), we get a palindrome (9653553569).

The spelling of 2142501157 in words is "two billion, one hundred forty-two million, five hundred one thousand, one hundred fifty-seven".