1174098981 has 8 divisors (see below), whose sum is σ = 1707780384. Its totient is φ = 711575120.

The previous prime is 1174098979. The next prime is 1174099007. The reversal of 1174098981 is 1898904711.

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 1174098981 - 2¹ = 1174098979 is a prime.

It is a super-3 number, since 3×1174098981³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1174098981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1174098941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17789346 + ... + 17789411.

It is an arithmetic number, because the mean of its divisors is an integer number (213472548).

Almost surely, 2^1174098981 is an apocalyptic number.

1174098981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1174098981 is a deficient number, since it is larger than the sum of its proper divisors (533681403).

1174098981 is a wasteful number, since it uses less digits than its factorization.

1174098981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35578771.

The product of its (nonzero) digits is 145152, while the sum is 48.

The square root of 1174098981 is about 34265.1277686221. The cubic root of 1174098981 is about 1054.9573535317.

The spelling of 1174098981 in words is "one billion, one hundred seventy-four million, ninety-eight thousand, nine hundred eighty-one".