1147195420 has 48 divisors (see below), whose sum is σ = 2759178240. Its totient is φ = 392480064.

The previous prime is 1147195363. The next prime is 1147195447. The reversal of 1147195420 is 245917411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58507 + ... + 75613.

It is an arithmetic number, because the mean of its divisors is an integer number (57482880).

Almost surely, 2^1147195420 is an apocalyptic number.

1147195420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1147195420 is an abundant number, since it is smaller than the sum of its proper divisors (1611982820).

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

1147195420 is a wasteful number, since it uses less digits than its factorization.

1147195420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17602 (or 17600 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1147195420 is about 33870.2733971841. The cubic root of 1147195420 is about 1046.8371702614.

The spelling of 1147195420 in words is "one billion, one hundred forty-seven million, one hundred ninety-five thousand, four hundred twenty".