1197555403 has 8 divisors (see below), whose sum is σ = 1311076656. Its totient is φ = 1084809600.

The previous prime is 1197555397. The next prime is 1197555407. The reversal of 1197555403 is 3045557911.

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

It is a cyclic number.

It is not a de Polignac number, because 1197555403 - 2⁵ = 1197555371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1197555407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190626 + ... + 196807.

It is an arithmetic number, because the mean of its divisors is an integer number (163884582).

Almost surely, 2^1197555403 is an apocalyptic number.

1197555403 is a deficient number, since it is larger than the sum of its proper divisors (113521253).

1197555403 is a wasteful number, since it uses less digits than its factorization.

1197555403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387725.

The product of its (nonzero) digits is 94500, while the sum is 40.

The square root of 1197555403 is about 34605.7134444588. The cubic root of 1197555403 is about 1061.9364752996.

The spelling of 1197555403 in words is "one billion, one hundred ninety-seven million, five hundred fifty-five thousand, four hundred three".