1425418700281 has 3 divisors (see below), whose sum is σ = 1425419894191. Its totient is φ = 1425417506372.

The previous prime is 1425418700239. The next prime is 1425418700477. The reversal of 1425418700281 is 1820078145241.

The square root of 1425418700281 is 1193909.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 473194027881 + 952224672400 = 687891^2 + 975820^2 .

It is not a de Polignac number, because 1425418700281 - 2²¹ = 1425416603129 is a prime.

It is a super-2 number, since 2×1425418700281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425418700081) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 596955 + ... + 1790863.

Almost surely, 2^{1425418700281} is an apocalyptic number.

1425418700281 is the 1193909-th square number.

1425418700281 is the 596955-th centered octagonal number.

It is an amenable number.

1425418700281 is a deficient number, since it is larger than the sum of its proper divisors (1193910).

1425418700281 is an frugal number, since it uses more digits than its factorization.

1425418700281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387818 (or 1193909 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 43.

The spelling of 1425418700281 in words is "one trillion, four hundred twenty-five billion, four hundred eighteen million, seven hundred thousand, two hundred eighty-one".