1115662197 has 48 divisors (see below), whose sum is σ = 1708586880. Its totient is φ = 643572864.

The previous prime is 1115662183. The next prime is 1115662201. The reversal of 1115662197 is 7912665111.

It is not a de Polignac number, because 1115662197 - 2⁴ = 1115662181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115662157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1534248 + ... + 1534974.

It is an arithmetic number, because the mean of its divisors is an integer number (35595560).

Almost surely, 2^1115662197 is an apocalyptic number.

It is an amenable number.

1115662197 is a deficient number, since it is larger than the sum of its proper divisors (592924683).

1115662197 is a wasteful number, since it uses less digits than its factorization.

1115662197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 871 counting only the distinct ones).

The product of its digits is 22680, while the sum is 39.

The square root of 1115662197 is about 33401.5298601726. The cubic root of 1115662197 is about 1037.1563704883.

The spelling of 1115662197 in words is "one billion, one hundred fifteen million, six hundred sixty-two thousand, one hundred ninety-seven".