1022173425 has 216 divisors, whose sum is σ = 2392388544. Its totient is φ = 421303680.

The previous prime is 1022173409. The next prime is 1022173499. The reversal of 1022173425 is 5243712201.

1022173425 is a `hidden beast` number, since 10 + 221 + 7 + 3 + 425 = 666.

It is not a de Polignac number, because 1022173425 - 2⁴ = 1022173409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 23771454 + ... + 23771496.

Almost surely, 2^1022173425 is an apocalyptic number.

1022173425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1022173425 is an abundant number, since it is smaller than the sum of its proper divisors (1370215119).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022173425 is an equidigital number, since it uses as much as digits as its factorization.

1022173425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1022173425 is about 31971.4470269958. The cubic root of 1022173425 is about 1007.3371758536.

Adding to 1022173425 its reverse (5243712201), we get a palindrome (6265885626).

The spelling of 1022173425 in words is "one billion, twenty-two million, one hundred seventy-three thousand, four hundred twenty-five".