57146405 has 4 divisors (see below), whose sum is σ = 68575692. Its totient is φ = 45717120.

The previous prime is 57146363. The next prime is 57146429. The reversal of 57146405 is 50464175.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22877089 + 34269316 = 4783^2 + 5854^2 .

It is not a de Polignac number, because 57146405 - 2⁸ = 57146149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5714636 + ... + 5714645.

It is an arithmetic number, because the mean of its divisors is an integer number (17143923).

Almost surely, 2^57146405 is an apocalyptic number.

It is an amenable number.

57146405 is a deficient number, since it is larger than the sum of its proper divisors (11429287).

57146405 is a wasteful number, since it uses less digits than its factorization.

57146405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11429286.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 57146405 is about 7559.5241252343. The cubic root of 57146405 is about 385.1793283881.

The spelling of 57146405 in words is "fifty-seven million, one hundred forty-six thousand, four hundred five".