1197278492 has 6 divisors (see below), whose sum is σ = 2095237368. Its totient is φ = 598639244.

The previous prime is 1197278473. The next prime is 1197278503. The reversal of 1197278492 is 2948727911.

It is a self number, because there is not a number n which added to its sum of digits gives 1197278492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149659808 + ... + 149659815.

It is an arithmetic number, because the mean of its divisors is an integer number (349206228).

Almost surely, 2^1197278492 is an apocalyptic number.

It is an amenable number.

1197278492 is a deficient number, since it is larger than the sum of its proper divisors (897958876).

1197278492 is a wasteful number, since it uses less digits than its factorization.

1197278492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299319627 (or 299319625 counting only the distinct ones).

The product of its digits is 508032, while the sum is 50.

The square root of 1197278492 is about 34601.7122697707. The cubic root of 1197278492 is about 1061.8546183882.

The spelling of 1197278492 in words is "one billion, one hundred ninety-seven million, two hundred seventy-eight thousand, four hundred ninety-two".