540415663 has 2 divisors, whose sum is σ = 540415664. Its totient is φ = 540415662.

The previous prime is 540415661. The next prime is 540415693. The reversal of 540415663 is 366514045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540415663 - 2¹ = 540415661 is a prime.

Together with 540415661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540415661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270207831 + 270207832.

It is an arithmetic number, because the mean of its divisors is an integer number (270207832).

Almost surely, 2^540415663 is an apocalyptic number.

540415663 is a deficient number, since it is larger than the sum of its proper divisors (1).

540415663 is an equidigital number, since it uses as much as digits as its factorization.

540415663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 540415663 is about 23246.8420005815. The cubic root of 540415663 is about 814.5341726815.

The spelling of 540415663 in words is "five hundred forty million, four hundred fifteen thousand, six hundred sixty-three".