1425431013 has 4 divisors (see below), whose sum is σ = 1900574688. Its totient is φ = 950287340.

The previous prime is 1425431009. The next prime is 1425431023. The reversal of 1425431013 is 3101345241.

It is a happy number.

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 1425431013 - 2² = 1425431009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425431023) 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, 237571833 + ... + 237571838.

It is an arithmetic number, because the mean of its divisors is an integer number (475143672).

Almost surely, 2^1425431013 is an apocalyptic number.

It is an amenable number.

1425431013 is a deficient number, since it is larger than the sum of its proper divisors (475143675).

1425431013 is an equidigital number, since it uses as much as digits as its factorization.

1425431013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475143674.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1425431013 is about 37754.8806513807. The cubic root of 1425431013 is about 1125.4220014847.

Adding to 1425431013 its reverse (3101345241), we get a palindrome (4526776254).

The spelling of 1425431013 in words is "one billion, four hundred twenty-five million, four hundred thirty-one thousand, thirteen".