15122101 has 8 divisors (see below), whose sum is σ = 15547520. Its totient is φ = 14702688.

The previous prime is 15122089. The next prime is 15122117. The reversal of 15122101 is 10122151.

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 15122101 - 2⁵ = 15122069 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 (15122131) 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, 3865 + ... + 6721.

It is an arithmetic number, because the mean of its divisors is an integer number (1943440).

Almost surely, 2^15122101 is an apocalyptic number.

It is an amenable number.

15122101 is a deficient number, since it is larger than the sum of its proper divisors (425419).

15122101 is an equidigital number, since it uses as much as digits as its factorization.

15122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 15122101 is about 3888.7145691089. The cubic root of 15122101 is about 247.2885709242.

Adding to 15122101 its reverse (10122151), we get a palindrome (25244252).

The spelling of 15122101 in words is "fifteen million, one hundred twenty-two thousand, one hundred one".