15122004001 has 8 divisors (see below), whose sum is σ = 16294011944. Its totient is φ = 13951249920.

The previous prime is 15122003989. The next prime is 15122004013. The reversal of 15122004001 is 10040022151.

It is an interprime number because it is at equal distance from previous prime (15122003989) and next prime (15122004013).

It can be written as a sum of positive squares in 4 ways, for example, as 3441582225 + 11680421776 = 58665^2 + 108076^2 .

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 15122004001 - 2²³ = 15113615393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15122004061) 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, 288336 + ... + 336721.

It is an arithmetic number, because the mean of its divisors is an integer number (2036751493).

Almost surely, 2^15122004001 is an apocalyptic number.

It is an amenable number.

15122004001 is a deficient number, since it is larger than the sum of its proper divisors (1172007943).

15122004001 is a wasteful number, since it uses less digits than its factorization.

15122004001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626931.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 15122004001 its reverse (10040022151), we get a palindrome (25162026152).

The spelling of 15122004001 in words is "fifteen billion, one hundred twenty-two million, four thousand, one".