2152756291 has 16 divisors (see below), whose sum is σ = 2668559040. Its totient is φ = 1694315520.

The previous prime is 2152756289. The next prime is 2152756303. The reversal of 2152756291 is 1926572512.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2152756291 - 2¹ = 2152756289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2152751291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215736 + ... + 225493.

It is an arithmetic number, because the mean of its divisors is an integer number (166784940).

Almost surely, 2^2152756291 is an apocalyptic number.

2152756291 is a deficient number, since it is larger than the sum of its proper divisors (515802749).

2152756291 is a wasteful number, since it uses less digits than its factorization.

2152756291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441294.

The product of its digits is 75600, while the sum is 40.

The square root of 2152756291 is about 46397.8048079863. The cubic root of 2152756291 is about 1291.2141866206.

The spelling of 2152756291 in words is "two billion, one hundred fifty-two million, seven hundred fifty-six thousand, two hundred ninety-one".