2146156237 has 4 divisors (see below), whose sum is σ = 2155780480. Its totient is φ = 2136531996.

The previous prime is 2146156231. The next prime is 2146156241. The reversal of 2146156237 is 7326516412.

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 a de Polignac number, because none of the positive numbers 2^k-2146156237 is a prime.

It is a super-2 number, since 2×2146156237² = 9211973187228000338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2146156196 and 2146156205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146156231) 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, 4811787 + ... + 4812232.

It is an arithmetic number, because the mean of its divisors is an integer number (538945120).

Almost surely, 2^2146156237 is an apocalyptic number.

It is an amenable number.

2146156237 is a deficient number, since it is larger than the sum of its proper divisors (9624243).

2146156237 is an equidigital number, since it uses as much as digits as its factorization.

2146156237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9624242.

The product of its digits is 60480, while the sum is 37.

The square root of 2146156237 is about 46326.6255732057. The cubic root of 2146156237 is about 1289.8932742264.

The spelling of 2146156237 in words is "two billion, one hundred forty-six million, one hundred fifty-six thousand, two hundred thirty-seven".