1197381619 has 8 divisors (see below), whose sum is σ = 1369272320. Its totient is φ = 1025699976.

The previous prime is 1197381611. The next prime is 1197381629. The reversal of 1197381619 is 9161837911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1197381619 - 2³ = 1197381611 is a prime.

It is a super-2 number, since 2×1197381619² = 2867445483038122322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1197381611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39789 + ... + 63070.

It is an arithmetic number, because the mean of its divisors is an integer number (171159040).

Almost surely, 2^1197381619 is an apocalyptic number.

1197381619 is a deficient number, since it is larger than the sum of its proper divisors (171890701).

1197381619 is a wasteful number, since it uses less digits than its factorization.

1197381619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104529.

The product of its digits is 81648, while the sum is 46.

The square root of 1197381619 is about 34603.2024385027. The cubic root of 1197381619 is about 1061.8851049565.

The spelling of 1197381619 in words is "one billion, one hundred ninety-seven million, three hundred eighty-one thousand, six hundred nineteen".