1197021135 has 16 divisors (see below), whose sum is σ = 1977016320. Its totient is φ = 617817120.

The previous prime is 1197021083. The next prime is 1197021149. The reversal of 1197021135 is 5311207911.

It is not a de Polignac number, because 1197021135 - 2¹⁴ = 1197004751 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1286655 + ... + 1287584.

It is an arithmetic number, because the mean of its divisors is an integer number (123563520).

Almost surely, 2^1197021135 is an apocalyptic number.

1197021135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1197021135 is a deficient number, since it is larger than the sum of its proper divisors (779995185).

1197021135 is a wasteful number, since it uses less digits than its factorization.

1197021135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574278.

The product of its (nonzero) digits is 1890, while the sum is 30.

The square root of 1197021135 is about 34597.9932221509. The cubic root of 1197021135 is about 1061.7785304651.

The spelling of 1197021135 in words is "one billion, one hundred ninety-seven million, twenty-one thousand, one hundred thirty-five".