115021001 has 8 divisors (see below), whose sum is σ = 118175904. Its totient is φ = 111888000.

The previous prime is 115020991. The next prime is 115021007. The reversal of 115021001 is 100120511.

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

It is a cyclic number.

It is not a de Polignac number, because 115021001 - 2²² = 110826697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115021007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5465 + ... + 16121.

It is an arithmetic number, because the mean of its divisors is an integer number (14771988).

Almost surely, 2^115021001 is an apocalyptic number.

It is an amenable number.

115021001 is a deficient number, since it is larger than the sum of its proper divisors (3154903).

115021001 is a wasteful number, since it uses less digits than its factorization.

115021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10951.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 115021001 is about 10724.7844267379. The cubic root of 115021001 is about 486.3240132467.

Adding to 115021001 its reverse (100120511), we get a palindrome (215141512).

The spelling of 115021001 in words is "one hundred fifteen million, twenty-one thousand, one".