1425712131 has 16 divisors (see below), whose sum is σ = 2138905600. Its totient is φ = 938442024.

The previous prime is 1425712129. The next prime is 1425712151. The reversal of 1425712131 is 1312175241.

1425712131 is a `hidden beast` number, since 1 + 42 + 571 + 21 + 31 = 666.

It is not a de Polignac number, because 1425712131 - 2¹ = 1425712129 is a prime.

It is a super-2 number, since 2×1425712131² = 4065310160961122322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1425712095 and 1425712104.

It is not an unprimeable number, because it can be changed into a prime (1425712151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332071 + ... + 336336.

It is an arithmetic number, because the mean of its divisors is an integer number (133681600).

Almost surely, 2^1425712131 is an apocalyptic number.

1425712131 is a deficient number, since it is larger than the sum of its proper divisors (713193469).

1425712131 is an equidigital number, since it uses as much as digits as its factorization.

1425712131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668495 (or 668489 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1425712131 is about 37758.6034037277. The cubic root of 1425712131 is about 1125.4959804154.

Adding to 1425712131 its reverse (1312175241), we get a palindrome (2737887372).

The spelling of 1425712131 in words is "one billion, four hundred twenty-five million, seven hundred twelve thousand, one hundred thirty-one".