115142999 has 4 divisors (see below), whose sum is σ = 115233480. Its totient is φ = 115052520.

The previous prime is 115142981. The next prime is 115143031. The reversal of 115142999 is 999241511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115142999 - 2¹⁶ = 115077463 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 (115642999) 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 3 ways as a sum of consecutive naturals, for example, 43304 + ... + 45885.

It is an arithmetic number, because the mean of its divisors is an integer number (28808370).

Almost surely, 2^115142999 is an apocalyptic number.

115142999 is a deficient number, since it is larger than the sum of its proper divisors (90481).

115142999 is an equidigital number, since it uses as much as digits as its factorization.

115142999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90480.

The product of its digits is 29160, while the sum is 41.

The square root of 115142999 is about 10730.4705861393. The cubic root of 115142999 is about 486.4958937216.

The spelling of 115142999 in words is "one hundred fifteen million, one hundred forty-two thousand, nine hundred ninety-nine".