1047161197 has 16 divisors (see below), whose sum is σ = 1094773680. Its totient is φ = 1000742400.

The previous prime is 1047161177. The next prime is 1047161209. The reversal of 1047161197 is 7911617401.

It can be written as a sum of positive squares in 8 ways, for example, as 304816681 + 742344516 = 17459^2 + 27246^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047161197 - 2²³ = 1038772589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047161177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732079 + ... + 733507.

It is an arithmetic number, because the mean of its divisors is an integer number (68423355).

Almost surely, 2^1047161197 is an apocalyptic number.

It is an amenable number.

1047161197 is a deficient number, since it is larger than the sum of its proper divisors (47612483).

1047161197 is a wasteful number, since it uses less digits than its factorization.

1047161197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824.

The product of its (nonzero) digits is 10584, while the sum is 37.

The square root of 1047161197 is about 32359.8701635220. The cubic root of 1047161197 is about 1015.4795462633.

Adding to 1047161197 its reverse (7911617401), we get a palindrome (8958778598).

The spelling of 1047161197 in words is "one billion, forty-seven million, one hundred sixty-one thousand, one hundred ninety-seven".