1170131045 has 4 divisors (see below), whose sum is σ = 1404157260. Its totient is φ = 936104832.

The previous prime is 1170131033. The next prime is 1170131057. The reversal of 1170131045 is 5401310711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5401310711 = 43 ⋅125611877.

It is an interprime number because it is at equal distance from previous prime (1170131033) and next prime (1170131057).

It can be written as a sum of positive squares in 2 ways, for example, as 240064036 + 930067009 = 15494^2 + 30497^2 .

It is a cyclic number.

It is not a de Polignac number, because 1170131045 - 2¹⁰ = 1170130021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1170131045.

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, 117013100 + ... + 117013109.

It is an arithmetic number, because the mean of its divisors is an integer number (351039315).

Almost surely, 2^1170131045 is an apocalyptic number.

It is an amenable number.

1170131045 is a deficient number, since it is larger than the sum of its proper divisors (234026215).

1170131045 is an equidigital number, since it uses as much as digits as its factorization.

1170131045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234026214.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1170131045 is about 34207.1782671415. The cubic root of 1170131045 is about 1053.7675822497.

Adding to 1170131045 its reverse (5401310711), we get a palindrome (6571441756).

The spelling of 1170131045 in words is "one billion, one hundred seventy million, one hundred thirty-one thousand, forty-five".