1161047253 has 16 divisors (see below), whose sum is σ = 1575590400. Its totient is φ = 760289520.

The previous prime is 1161047233. The next prime is 1161047273. The reversal of 1161047253 is 3527401611.

It is an interprime number because it is at equal distance from previous prime (1161047233) and next prime (1161047273).

It is not a de Polignac number, because 1161047253 - 2¹² = 1161043157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1161047253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161047213) 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, 330838 + ... + 334328.

It is an arithmetic number, because the mean of its divisors is an integer number (98474400).

Almost surely, 2^1161047253 is an apocalyptic number.

It is an amenable number.

1161047253 is a deficient number, since it is larger than the sum of its proper divisors (414543147).

1161047253 is a wasteful number, since it uses less digits than its factorization.

1161047253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1161047253 is about 34074.1434668577. The cubic root of 1161047253 is about 1051.0336768432.

Adding to 1161047253 its reverse (3527401611), we get a palindrome (4688448864).

The spelling of 1161047253 in words is "one billion, one hundred sixty-one million, forty-seven thousand, two hundred fifty-three".