1425085739 has 8 divisors (see below), whose sum is σ = 1776730368. Its totient is φ = 1110456360.

The previous prime is 1425085733. The next prime is 1425085763. The reversal of 1425085739 is 9375805241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425085739 is a prime.

It is a super-2 number, since 2×1425085739² = 4061738727002352242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1425085739.

It is not an unprimeable number, because it can be changed into a prime (1425085733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9253727 + ... + 9253880.

It is an arithmetic number, because the mean of its divisors is an integer number (222091296).

Almost surely, 2^1425085739 is an apocalyptic number.

1425085739 is a deficient number, since it is larger than the sum of its proper divisors (351644629).

1425085739 is a wasteful number, since it uses less digits than its factorization.

1425085739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18507625.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 1425085739 is about 37750.3078000697. The cubic root of 1425085739 is about 1125.3311259691.

The spelling of 1425085739 in words is "one billion, four hundred twenty-five million, eighty-five thousand, seven hundred thirty-nine".