402054135 has 16 divisors (see below), whose sum is σ = 735184896. Its totient is φ = 183796128.

The previous prime is 402054127. The next prime is 402054139. The reversal of 402054135 is 531450204.

It is not a de Polignac number, because 402054135 - 2³ = 402054127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402054139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1914439 + ... + 1914648.

It is an arithmetic number, because the mean of its divisors is an integer number (45949056).

Almost surely, 2^402054135 is an apocalyptic number.

402054135 is a deficient number, since it is larger than the sum of its proper divisors (333130761).

402054135 is a wasteful number, since it uses less digits than its factorization.

402054135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3829102.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 402054135 is about 20051.2876145149. The cubic root of 402054135 is about 738.0653965594.

The spelling of 402054135 in words is "four hundred two million, fifty-four thousand, one hundred thirty-five".