235272164521 has 2 divisors, whose sum is σ = 235272164522. Its totient is φ = 235272164520.

The previous prime is 235272164437. The next prime is 235272164527. The reversal of 235272164521 is 125461272532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224732883600 + 10539280921 = 474060^2 + 102661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235272164521 is a prime.

It is not a weakly prime, because it can be changed into another prime (235272164527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117636082260 + 117636082261.

It is an arithmetic number, because the mean of its divisors is an integer number (117636082261).

Almost surely, 2^235272164521 is an apocalyptic number.

It is an amenable number.

235272164521 is a deficient number, since it is larger than the sum of its proper divisors (1).

235272164521 is an equidigital number, since it uses as much as digits as its factorization.

235272164521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 40.

The spelling of 235272164521 in words is "two hundred thirty-five billion, two hundred seventy-two million, one hundred sixty-four thousand, five hundred twenty-one".