115172740 has 12 divisors (see below), whose sum is σ = 241862796. Its totient is φ = 46069088.

The previous prime is 115172723. The next prime is 115172741. The reversal of 115172740 is 47271511.

It can be written as a sum of positive squares in 2 ways, for example, as 16924996 + 98247744 = 4114^2 + 9912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115172699 and 115172708.

It is not an unprimeable number, because it can be changed into a prime (115172741) 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, 2879299 + ... + 2879338.

It is an arithmetic number, because the mean of its divisors is an integer number (20155233).

Almost surely, 2^115172740 is an apocalyptic number.

115172740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115172740 is an abundant number, since it is smaller than the sum of its proper divisors (126690056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115172740 is a wasteful number, since it uses less digits than its factorization.

115172740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5758646 (or 5758644 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 115172740 is about 10731.8563165931. The cubic root of 115172740 is about 486.5377767973.

The spelling of 115172740 in words is "one hundred fifteen million, one hundred seventy-two thousand, seven hundred forty".