115189402 has 8 divisors (see below), whose sum is σ = 172847412. Its totient is φ = 57573600.

The previous prime is 115189391. The next prime is 115189409. The reversal of 115189402 is 204981511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114468601 + 720801 = 10699^2 + 849^2 .

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

It is not an unprimeable number, because it can be changed into a prime (115189409) 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, 2499 + ... + 15382.

Almost surely, 2^115189402 is an apocalyptic number.

115189402 is a deficient number, since it is larger than the sum of its proper divisors (57658010).

115189402 is a wasteful number, since it uses less digits than its factorization.

115189402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21104.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 115189402 is about 10732.6325754681. The cubic root of 115189402 is about 486.5612380826.

The spelling of 115189402 in words is "one hundred fifteen million, one hundred eighty-nine thousand, four hundred two".