1161671253 has 8 divisors (see below), whose sum is σ = 1549365600. Its totient is φ = 774212208.

The previous prime is 1161671219. The next prime is 1161671293. The reversal of 1161671253 is 3521761611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1161671253 - 2²² = 1157476949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161671293) 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, 46963 + ... + 67296.

It is an arithmetic number, because the mean of its divisors is an integer number (193670700).

Almost surely, 2^1161671253 is an apocalyptic number.

It is an amenable number.

1161671253 is a deficient number, since it is larger than the sum of its proper divisors (387694347).

1161671253 is a wasteful number, since it uses less digits than its factorization.

1161671253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117651.

The product of its digits is 7560, while the sum is 33.

The square root of 1161671253 is about 34083.2987399987. The cubic root of 1161671253 is about 1051.2219343421.

The spelling of 1161671253 in words is "one billion, one hundred sixty-one million, six hundred seventy-one thousand, two hundred fifty-three".