2142501156 has 36 divisors (see below), whose sum is σ = 5421289692. Its totient is φ = 713438784.

The previous prime is 2142501149. The next prime is 2142501167. The reversal of 2142501156 is 6511052412.

2142501156 is a `hidden beast` number, since 2 + 1 + 4 + 2 + 501 + 156 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 783104256 + 1359396900 = 27984^2 + 36870^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2142501156² = 9180622406922672672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6046 + ... + 65738.

Almost surely, 2^2142501156 is an apocalyptic number.

It is an amenable number.

2142501156 is an abundant number, since it is smaller than the sum of its proper divisors (3278788536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2142501156 is a wasteful number, since it uses less digits than its factorization.

2142501156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60700 (or 60695 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2142501156 is about 46287.1597313985. The cubic root of 2142501156 is about 1289.1605932687.

Adding to 2142501156 its reverse (6511052412), we get a palindrome (8653553568).

The spelling of 2142501156 in words is "two billion, one hundred forty-two million, five hundred one thousand, one hundred fifty-six".