541521402 has 32 divisors (see below), whose sum is σ = 1101496320. Its totient is φ = 177446640.

The previous prime is 541521397. The next prime is 541521469. The reversal of 541521402 is 204125145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161499 + ... + 164817.

It is an arithmetic number, because the mean of its divisors is an integer number (34421760).

Almost surely, 2^541521402 is an apocalyptic number.

541521402 is an abundant number, since it is smaller than the sum of its proper divisors (559974918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

541521402 is a wasteful number, since it uses less digits than its factorization.

541521402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 541521402 is about 23270.6124113655. The cubic root of 541521402 is about 815.0893309186.

Adding to 541521402 its reverse (204125145), we get a palindrome (745646547).

The spelling of 541521402 in words is "five hundred forty-one million, five hundred twenty-one thousand, four hundred two".