426136457 has 4 divisors (see below), whose sum is σ = 426246660. Its totient is φ = 426026256.

The previous prime is 426136453. The next prime is 426136463. The reversal of 426136457 is 754631624.

It is a happy number.

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 243859456 + 182277001 = 15616^2 + 13501^2 .

It is a cyclic number.

It is not a de Polignac number, because 426136457 - 2² = 426136453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426136457.

It is not an unprimeable number, because it can be changed into a prime (426136453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49082 + ... + 57107.

It is an arithmetic number, because the mean of its divisors is an integer number (106561665).

Almost surely, 2^426136457 is an apocalyptic number.

It is an amenable number.

426136457 is a deficient number, since it is larger than the sum of its proper divisors (110203).

426136457 is a wasteful number, since it uses less digits than its factorization.

426136457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110202.

The product of its digits is 120960, while the sum is 38.

The square root of 426136457 is about 20643.0728574987. The cubic root of 426136457 is about 752.5168523431.

The spelling of 426136457 in words is "four hundred twenty-six million, one hundred thirty-six thousand, four hundred fifty-seven".