1172098099 has 12 divisors (see below), whose sum is σ = 1275518664. Its totient is φ = 1073314944.

The previous prime is 1172098097. The next prime is 1172098111. The reversal of 1172098099 is 9908902711.

It is a happy number.

It is not a de Polignac number, because 1172098099 - 2¹ = 1172098097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1172098097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1909 + ... + 48454.

It is an arithmetic number, because the mean of its divisors is an integer number (106293222).

Almost surely, 2^1172098099 is an apocalyptic number.

1172098099 is a deficient number, since it is larger than the sum of its proper divisors (103420565).

1172098099 is an equidigital number, since it uses as much as digits as its factorization.

1172098099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50454 (or 50417 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 46.

The square root of 1172098099 is about 34235.9182584607. The cubic root of 1172098099 is about 1054.3577319096.

The spelling of 1172098099 in words is "one billion, one hundred seventy-two million, ninety-eight thousand, ninety-nine".