1195917972 has 48 divisors (see below), whose sum is σ = 2983925952. Its totient is φ = 371468800.

The previous prime is 1195917953. The next prime is 1195917977. The reversal of 1195917972 is 2797195911.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1195917977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8418 + ... + 49625.

It is an arithmetic number, because the mean of its divisors is an integer number (62165124).

Almost surely, 2^1195917972 is an apocalyptic number.

1195917972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1195917972 is an abundant number, since it is smaller than the sum of its proper divisors (1788007980).

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

1195917972 is a wasteful number, since it uses less digits than its factorization.

1195917972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58168 (or 58166 counting only the distinct ones).

The product of its digits is 357210, while the sum is 51.

The square root of 1195917972 is about 34582.0469608148. The cubic root of 1195917972 is about 1061.4522553022.

The spelling of 1195917972 in words is "one billion, one hundred ninety-five million, nine hundred seventeen thousand, nine hundred seventy-two".