Search a number
-
+
15112001 is a prime number
BaseRepresentation
bin111001101001…
…011101000001
31001102202202202
4321221131001
512332041001
61255522545
7242310212
oct71513501
931382682
1015112001
118591963
125089455
133191618
142015409
1514d796b
hexe69741

15112001 has 2 divisors, whose sum is σ = 15112002. Its totient is φ = 15112000.

The previous prime is 15111937. The next prime is 15112003. The reversal of 15112001 is 10021151.

15112001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13359025 + 1752976 = 3655^2 + 1324^2 .

It is a cyclic number.

It is not a de Polignac number, because 15112001 - 26 = 15111937 is a prime.

Together with 15112003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15112003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7556000 + 7556001.

It is an arithmetic number, because the mean of its divisors is an integer number (7556001).

Almost surely, 215112001 is an apocalyptic number.

It is an amenable number.

15112001 is a deficient number, since it is larger than the sum of its proper divisors (1).

15112001 is an equidigital number, since it uses as much as digits as its factorization.

15112001 is an evil number, because the sum of its binary digits is even.

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

The square root of 15112001 is about 3887.4157225591. The cubic root of 15112001 is about 247.2335042633.

Adding to 15112001 its reverse (10021151), we get a palindrome (25133152).

The spelling of 15112001 in words is "fifteen million, one hundred twelve thousand, one".