1225392898 has 8 divisors (see below), whose sum is σ = 1847613708. Its totient is φ = 609521664.

The previous prime is 1225392881. The next prime is 1225392907. The reversal of 1225392898 is 8982935221.

It can be written as a sum of positive squares in 2 ways, for example, as 1156884169 + 68508729 = 34013^2 + 8277^2 .

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

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, 1586911 + ... + 1587682.

Almost surely, 2^1225392898 is an apocalyptic number.

1225392898 is a deficient number, since it is larger than the sum of its proper divisors (622220810).

1225392898 is a wasteful number, since it uses less digits than its factorization.

1225392898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174788.

The product of its digits is 622080, while the sum is 49.

The square root of 1225392898 is about 35005.6123785887. The cubic root of 1225392898 is about 1070.1018617907.

The spelling of 1225392898 in words is "one billion, two hundred twenty-five million, three hundred ninety-two thousand, eight hundred ninety-eight".