1197481620 has 48 divisors (see below), whose sum is σ = 3403003968. Its totient is φ = 314561280.

The previous prime is 1197481583. The next prime is 1197481627. The reversal of 1197481620 is 261847911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197481627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144921 + ... + 152960.

It is an arithmetic number, because the mean of its divisors is an integer number (70895916).

Almost surely, 2^1197481620 is an apocalyptic number.

1197481620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1197481620 is an abundant number, since it is smaller than the sum of its proper divisors (2205522348).

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

1197481620 is a wasteful number, since it uses less digits than its factorization.

1197481620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297960 (or 297958 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1197481620 is about 34604.6473757500. The cubic root of 1197481620 is about 1061.9146657399.

The spelling of 1197481620 in words is "one billion, one hundred ninety-seven million, four hundred eighty-one thousand, six hundred twenty".