540046631 has 2 divisors, whose sum is σ = 540046632. Its totient is φ = 540046630.

The previous prime is 540046621. The next prime is 540046657. The reversal of 540046631 is 136640045.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540046631 - 2²² = 535852327 is a prime.

It is a super-2 number, since 2×540046631² = 583300727308900322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 540046594 and 540046603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540046621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270023315 + 270023316.

It is an arithmetic number, because the mean of its divisors is an integer number (270023316).

Almost surely, 2^540046631 is an apocalyptic number.

540046631 is a deficient number, since it is larger than the sum of its proper divisors (1).

540046631 is an equidigital number, since it uses as much as digits as its factorization.

540046631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 540046631 is about 23238.9033949539. The cubic root of 540046631 is about 814.3487243053.

Adding to 540046631 its reverse (136640045), we get a palindrome (676686676).

The spelling of 540046631 in words is "five hundred forty million, forty-six thousand, six hundred thirty-one".