1197490431 has 8 divisors (see below), whose sum is σ = 1597679104. Its totient is φ = 797814360.

The previous prime is 1197490429. The next prime is 1197490433. The reversal of 1197490431 is 1340947911.

It is an interprime number because it is at equal distance from previous prime (1197490429) and next prime (1197490433).

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

It is not a de Polignac number, because 1197490431 - 2¹ = 1197490429 is a prime.

It is a super-2 number, since 2×1197490431² = 2867966664673131522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1197490431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197490433) 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, 122665 + ... + 132066.

It is an arithmetic number, because the mean of its divisors is an integer number (199709888).

Almost surely, 2^1197490431 is an apocalyptic number.

1197490431 is a deficient number, since it is larger than the sum of its proper divisors (400188673).

1197490431 is a wasteful number, since it uses less digits than its factorization.

1197490431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256301.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 1197490431 is about 34604.7746850055. The cubic root of 1197490431 is about 1061.9172702356.

The spelling of 1197490431 in words is "one billion, one hundred ninety-seven million, four hundred ninety thousand, four hundred thirty-one".