1197648045 has 64 divisors (see below), whose sum is σ = 2459393280. Its totient is φ = 546508800.

The previous prime is 1197648041. The next prime is 1197648059. The reversal of 1197648045 is 5408467911.

It is not a de Polignac number, because 1197648045 - 2² = 1197648041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197648041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1525 + ... + 48965.

It is an arithmetic number, because the mean of its divisors is an integer number (38428020).

Almost surely, 2^1197648045 is an apocalyptic number.

1197648045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1197648045 is an abundant number, since it is smaller than the sum of its proper divisors (1261745235).

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

1197648045 is a wasteful number, since it uses less digits than its factorization.

1197648045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47483 (or 47477 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1197648045 is about 34607.0519547678. The cubic root of 1197648045 is about 1061.9638581336.

The spelling of 1197648045 in words is "one billion, one hundred ninety-seven million, six hundred forty-eight thousand, forty-five".