1425297898 has 4 divisors (see below), whose sum is σ = 2137946850. Its totient is φ = 712648948.

The previous prime is 1425297857. The next prime is 1425297931. The reversal of 1425297898 is 8987925241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1415038689 + 10259209 = 37617^2 + 3203^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356324473 + ... + 356324476.

Almost surely, 2^1425297898 is an apocalyptic number.

1425297898 is a deficient number, since it is larger than the sum of its proper divisors (712648952).

1425297898 is an equidigital number, since it uses as much as digits as its factorization.

1425297898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712648951.

The product of its digits is 2903040, while the sum is 55.

The square root of 1425297898 is about 37753.1177255601. The cubic root of 1425297898 is about 1125.3869675869.

The spelling of 1425297898 in words is "one billion, four hundred twenty-five million, two hundred ninety-seven thousand, eight hundred ninety-eight".