2151520124653 has 2 divisors, whose sum is σ = 2151520124654. Its totient is φ = 2151520124652.

The previous prime is 2151520124617. The next prime is 2151520124657. The reversal of 2151520124653 is 3564210251512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2020028310729 + 131491813924 = 1421277^2 + 362618^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151520124653 - 2⁹ = 2151520124141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151520124657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075760062326 + 1075760062327.

It is an arithmetic number, because the mean of its divisors is an integer number (1075760062327).

Almost surely, 2^{2151520124653} is an apocalyptic number.

It is an amenable number.

2151520124653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151520124653 is an equidigital number, since it uses as much as digits as its factorization.

2151520124653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 2151520124653 in words is "two trillion, one hundred fifty-one billion, five hundred twenty million, one hundred twenty-four thousand, six hundred fifty-three".