1425632725145 has 4 divisors (see below), whose sum is σ = 1710759270180. Its totient is φ = 1140506180112.

The previous prime is 1425632725109. The next prime is 1425632725151. The reversal of 1425632725145 is 5415272365241.

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 920778423184 + 504854301961 = 959572^2 + 710531^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425632725145 - 2⁶ = 1425632725081 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1425632725145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142563272510 + ... + 142563272519.

It is an arithmetic number, because the mean of its divisors is an integer number (427689817545).

Almost surely, 2^{1425632725145} is an apocalyptic number.

It is an amenable number.

1425632725145 is a deficient number, since it is larger than the sum of its proper divisors (285126545035).

1425632725145 is an equidigital number, since it uses as much as digits as its factorization.

1425632725145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285126545034.

The product of its digits is 2016000, while the sum is 47.

The spelling of 1425632725145 in words is "one trillion, four hundred twenty-five billion, six hundred thirty-two million, seven hundred twenty-five thousand, one hundred forty-five".