1425138937 has 4 divisors (see below), whose sum is σ = 1437750900. Its totient is φ = 1412526976.

The previous prime is 1425138931. The next prime is 1425138941. The reversal of 1425138937 is 7398315241.

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 164249856 + 1260889081 = 12816^2 + 35509^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425138937 - 2³ = 1425138929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1425138893 and 1425138902.

It is not an unprimeable number, because it can be changed into a prime (1425138931) 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, 6305812 + ... + 6306037.

It is an arithmetic number, because the mean of its divisors is an integer number (359437725).

Almost surely, 2^1425138937 is an apocalyptic number.

It is an amenable number.

1425138937 is a deficient number, since it is larger than the sum of its proper divisors (12611963).

1425138937 is a wasteful number, since it uses less digits than its factorization.

1425138937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12611962.

The product of its digits is 181440, while the sum is 43.

The square root of 1425138937 is about 37751.0123970206. The cubic root of 1425138937 is about 1125.3451285465.

The spelling of 1425138937 in words is "one billion, four hundred twenty-five million, one hundred thirty-eight thousand, nine hundred thirty-seven".