540972451 has 2 divisors, whose sum is σ = 540972452. Its totient is φ = 540972450.

The previous prime is 540972401. The next prime is 540972457. The reversal of 540972451 is 154279045.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540972451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 540972451.

It is not a weakly prime, because it can be changed into another prime (540972457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270486225 + 270486226.

It is an arithmetic number, because the mean of its divisors is an integer number (270486226).

Almost surely, 2^540972451 is an apocalyptic number.

540972451 is a deficient number, since it is larger than the sum of its proper divisors (1).

540972451 is an equidigital number, since it uses as much as digits as its factorization.

540972451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 540972451 is about 23258.8144796763. The cubic root of 540972451 is about 814.8138137176.

The spelling of 540972451 in words is "five hundred forty million, nine hundred seventy-two thousand, four hundred fifty-one".