1425015431 has 4 divisors (see below), whose sum is σ = 1628589072. Its totient is φ = 1221441792.

The previous prime is 1425015421. The next prime is 1425015467. The reversal of 1425015431 is 1345105241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1345105241 = 10211 ⋅131731.

It is a cyclic number.

It is not a de Polignac number, because 1425015431 - 2¹⁰ = 1425014407 is a prime.

It is a super-2 number, since 2×1425015431² = 4061337957176231522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1425015431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425015421) 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, 101786810 + ... + 101786823.

It is an arithmetic number, because the mean of its divisors is an integer number (407147268).

Almost surely, 2^1425015431 is an apocalyptic number.

1425015431 is a deficient number, since it is larger than the sum of its proper divisors (203573641).

1425015431 is an equidigital number, since it uses as much as digits as its factorization.

1425015431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203573640.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1425015431 is about 37749.3765643885. The cubic root of 1425015431 is about 1125.3126192271.

The spelling of 1425015431 in words is "one billion, four hundred twenty-five million, fifteen thousand, four hundred thirty-one".