425814157 has 4 divisors (see below), whose sum is σ = 444327840. Its totient is φ = 407300476.

The previous prime is 425814143. The next prime is 425814161. The reversal of 425814157 is 751418524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 425814157 - 2²³ = 417425549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425814127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9256807 + ... + 9256852.

It is an arithmetic number, because the mean of its divisors is an integer number (111081960).

Almost surely, 2^425814157 is an apocalyptic number.

It is an amenable number.

425814157 is a deficient number, since it is larger than the sum of its proper divisors (18513683).

425814157 is a wasteful number, since it uses less digits than its factorization.

425814157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18513682.

The product of its digits is 44800, while the sum is 37.

The square root of 425814157 is about 20635.2648880503. The cubic root of 425814157 is about 752.3270873441.

The spelling of 425814157 in words is "four hundred twenty-five million, eight hundred fourteen thousand, one hundred fifty-seven".