113051261 has 4 divisors (see below), whose sum is σ = 113156352. Its totient is φ = 112946172.

The previous prime is 113051249. The next prime is 113051293. The reversal of 113051261 is 162150311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 162150311 = 139 ⋅1166549.

It is a cyclic number.

It is not a de Polignac number, because 113051261 - 2¹⁰ = 113050237 is a prime.

It is a super-2 number, since 2×113051261² = 25561175227380242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113050261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50915 + ... + 53088.

It is an arithmetic number, because the mean of its divisors is an integer number (28289088).

Almost surely, 2^113051261 is an apocalyptic number.

It is an amenable number.

113051261 is a deficient number, since it is larger than the sum of its proper divisors (105091).

113051261 is a wasteful number, since it uses less digits than its factorization.

113051261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105090.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 113051261 is about 10632.5566539756. The cubic root of 113051261 is about 483.5319066218.

The spelling of 113051261 in words is "one hundred thirteen million, fifty-one thousand, two hundred sixty-one".