1197422905 has 32 divisors (see below), whose sum is σ = 1730937600. Its totient is φ = 777783552.

The previous prime is 1197422893. The next prime is 1197422953. The reversal of 1197422905 is 5092247911.

It is a happy number.

It is not a de Polignac number, because 1197422905 - 2⁵ = 1197422873 is a prime.

It is a super-2 number, since 2×1197422905² = 2867643226837278050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42666 + ... + 64924.

It is an arithmetic number, because the mean of its divisors is an integer number (54091800).

Almost surely, 2^1197422905 is an apocalyptic number.

It is an amenable number.

1197422905 is a deficient number, since it is larger than the sum of its proper divisors (533514695).

1197422905 is a wasteful number, since it uses less digits than its factorization.

1197422905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22353.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 1197422905 is about 34603.7989966420. The cubic root of 1197422905 is about 1061.8973094990.

The spelling of 1197422905 in words is "one billion, one hundred ninety-seven million, four hundred twenty-two thousand, nine hundred five".