2137872523 has 2 divisors, whose sum is σ = 2137872524. Its totient is φ = 2137872522.

The previous prime is 2137872511. The next prime is 2137872577. The reversal of 2137872523 is 3252787312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2137872523 is a prime.

It is not a weakly prime, because it can be changed into another prime (2137872923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068936261 + 1068936262.

It is an arithmetic number, because the mean of its divisors is an integer number (1068936262).

Almost surely, 2^2137872523 is an apocalyptic number.

2137872523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137872523 is an equidigital number, since it uses as much as digits as its factorization.

2137872523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The square root of 2137872523 is about 46237.1335941146. The cubic root of 2137872523 is about 1288.2315617237.

The spelling of 2137872523 in words is "two billion, one hundred thirty-seven million, eight hundred seventy-two thousand, five hundred twenty-three".