115621402 has 8 divisors (see below), whose sum is σ = 186773076. Its totient is φ = 53363712.

The previous prime is 115621399. The next prime is 115621409. The reversal of 115621402 is 204126511.

It can be written as a sum of positive squares in 2 ways, for example, as 88153321 + 27468081 = 9389^2 + 5241^2 .

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 (115621409) 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, 2223463 + ... + 2223514.

Almost surely, 2^115621402 is an apocalyptic number.

115621402 is a deficient number, since it is larger than the sum of its proper divisors (71151674).

115621402 is a wasteful number, since it uses less digits than its factorization.

115621402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446992.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 115621402 is about 10752.7392789001. The cubic root of 115621402 is about 487.1687367762.

Adding to 115621402 its reverse (204126511), we get a palindrome (319747913).

The spelling of 115621402 in words is "one hundred fifteen million, six hundred twenty-one thousand, four hundred two".