540902449 has 2 divisors, whose sum is σ = 540902450. Its totient is φ = 540902448.

The previous prime is 540902443. The next prime is 540902473. The reversal of 540902449 is 944209045.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540888049 + 14400 = 23257^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 540902449 - 2⁷ = 540902321 is a prime.

It is not a weakly prime, because it can be changed into another prime (540902443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270451224 + 270451225.

It is an arithmetic number, because the mean of its divisors is an integer number (270451225).

Almost surely, 2^540902449 is an apocalyptic number.

It is an amenable number.

540902449 is a deficient number, since it is larger than the sum of its proper divisors (1).

540902449 is an equidigital number, since it uses as much as digits as its factorization.

540902449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 540902449 is about 23257.3095821507. The cubic root of 540902449 is about 814.7786664829.

The spelling of 540902449 in words is "five hundred forty million, nine hundred two thousand, four hundred forty-nine".