113507661 has 8 divisors (see below), whose sum is σ = 152061664. Its totient is φ = 75312720.

The previous prime is 113507593. The next prime is 113507683. The reversal of 113507661 is 166705311.

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

It is not a de Polignac number, because 113507661 - 2¹³ = 113499469 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 (113507561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89026 + ... + 90291.

It is an arithmetic number, because the mean of its divisors is an integer number (19007708).

Almost surely, 2^113507661 is an apocalyptic number.

It is an amenable number.

113507661 is a deficient number, since it is larger than the sum of its proper divisors (38554003).

113507661 is a wasteful number, since it uses less digits than its factorization.

113507661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179531.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 113507661 is about 10653.9974188095. The cubic root of 113507661 is about 484.1817229075.

The spelling of 113507661 in words is "one hundred thirteen million, five hundred seven thousand, six hundred sixty-one".