1165101398 has 12 divisors (see below), whose sum is σ = 1751998020. Its totient is φ = 581105556.

The previous prime is 1165101397. The next prime is 1165101407. The reversal of 1165101398 is 8931015611.

It is a happy number.

It is a super-2 number, since 2×1165101398² = 2714922535243108808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165101397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 457613 + ... + 460151.

It is an arithmetic number, because the mean of its divisors is an integer number (145999835).

Almost surely, 2^1165101398 is an apocalyptic number.

1165101398 is a deficient number, since it is larger than the sum of its proper divisors (586896622).

1165101398 is an frugal number, since it uses more digits than its factorization.

1165101398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499 (or 3020 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 1165101398 is about 34133.5816755289. The cubic root of 1165101398 is about 1052.2555889125.

The spelling of 1165101398 in words is "one billion, one hundred sixty-five million, one hundred one thousand, three hundred ninety-eight".