115661722 has 12 divisors (see below), whose sum is σ = 190698858. Its totient is φ = 52573400.

The previous prime is 115661719. The next prime is 115661723. The reversal of 115661722 is 227166511.

It can be written as a sum of positive squares in only one way, i.e., 79192201 + 36469521 = 8899^2 + 6039^2 .

It is not an unprimeable number, because it can be changed into a prime (115661723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 238729 + ... + 239212.

Almost surely, 2^115661722 is an apocalyptic number.

115661722 is a deficient number, since it is larger than the sum of its proper divisors (75037136).

115661722 is a wasteful number, since it uses less digits than its factorization.

115661722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477965 (or 477954 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 115661722 is about 10754.6139865641. The cubic root of 115661722 is about 487.2253593977.

The spelling of 115661722 in words is "one hundred fifteen million, six hundred sixty-one thousand, seven hundred twenty-two".