1173081172 has 12 divisors (see below), whose sum is σ = 2066670900. Its totient is φ = 582603776.

The previous prime is 1173081163. The next prime is 1173081181. The reversal of 1173081172 is 2711803711.

It is an interprime number because it is at equal distance from previous prime (1173081163) and next prime (1173081181).

It can be written as a sum of positive squares in 2 ways, for example, as 49758916 + 1123322256 = 7054^2 + 33516^2 .

It is a super-2 number, since 2×1173081172² = 2752238872201787168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983533 + ... + 984724.

It is an arithmetic number, because the mean of its divisors is an integer number (172222575).

Almost surely, 2^1173081172 is an apocalyptic number.

It is an amenable number.

1173081172 is a deficient number, since it is larger than the sum of its proper divisors (893589728).

1173081172 is a wasteful number, since it uses less digits than its factorization.

1173081172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968410 (or 1968408 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 31.

The square root of 1173081172 is about 34250.2725828569. The cubic root of 1173081172 is about 1054.6524231050.

Adding to 1173081172 its reverse (2711803711), we get a palindrome (3884884883).

The spelling of 1173081172 in words is "one billion, one hundred seventy-three million, eighty-one thousand, one hundred seventy-two".