2156236514 has 24 divisors (see below), whose sum is σ = 3458999700. Its totient is φ = 1007849216.

The previous prime is 2156236483. The next prime is 2156236519. The reversal of 2156236514 is 4156326512.

It can be written as a sum of positive squares in 6 ways, for example, as 1237843489 + 918393025 = 35183^2 + 30305^2 .

It is not an unprimeable number, because it can be changed into a prime (2156236519) 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, 73604 + ... + 98640.

Almost surely, 2^2156236514 is an apocalyptic number.

2156236514 is a deficient number, since it is larger than the sum of its proper divisors (1302763186).

2156236514 is a wasteful number, since it uses less digits than its factorization.

2156236514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25222 (or 25205 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 2156236514 is about 46435.2938399231. The cubic root of 2156236514 is about 1291.9096197165.

The spelling of 2156236514 in words is "two billion, one hundred fifty-six million, two hundred thirty-six thousand, five hundred fourteen".