115101001 has 4 divisors (see below), whose sum is σ = 117272772. Its totient is φ = 112929232.

The previous prime is 115100903. The next prime is 115101013. The reversal of 115101001 is 100101511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100101511 = 31 ⋅3229081.

It can be written as a sum of positive squares in 2 ways, for example, as 44876601 + 70224400 = 6699^2 + 8380^2 .

It is a cyclic number.

It is not a de Polignac number, because 115101001 - 2⁷ = 115100873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115101061) 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, 1085806 + ... + 1085911.

It is an arithmetic number, because the mean of its divisors is an integer number (29318193).

Almost surely, 2^115101001 is an apocalyptic number.

It is an amenable number.

115101001 is a deficient number, since it is larger than the sum of its proper divisors (2171771).

115101001 is an equidigital number, since it uses as much as digits as its factorization.

115101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171770.

The product of its (nonzero) digits is 5, while the sum is 10.

The square root of 115101001 is about 10728.5134571384. The cubic root of 115101001 is about 486.4367373121.

Adding to 115101001 its reverse (100101511), we get a palindrome (215202512).

The spelling of 115101001 in words is "one hundred fifteen million, one hundred one thousand, one".