1425937385 has 4 divisors (see below), whose sum is σ = 1711124868. Its totient is φ = 1140749904.

The previous prime is 1425937379. The next prime is 1425937391. The reversal of 1425937385 is 5837395241.

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

It is an interprime number because it is at equal distance from previous prime (1425937379) and next prime (1425937391).

It can be written as a sum of positive squares in 2 ways, for example, as 441672256 + 984265129 = 21016^2 + 31373^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425937385 - 2⁴ = 1425937369 is a prime.

It is a Duffinian 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, 142593734 + ... + 142593743.

It is an arithmetic number, because the mean of its divisors is an integer number (427781217).

Almost surely, 2^1425937385 is an apocalyptic number.

It is an amenable number.

1425937385 is a deficient number, since it is larger than the sum of its proper divisors (285187483).

1425937385 is an equidigital number, since it uses as much as digits as its factorization.

1425937385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285187482.

The product of its digits is 907200, while the sum is 47.

The square root of 1425937385 is about 37761.5861028109. The cubic root of 1425937385 is about 1125.5552511745. Note that the first 3 decimals are identical.

The spelling of 1425937385 in words is "one billion, four hundred twenty-five million, nine hundred thirty-seven thousand, three hundred eighty-five".