15201001 has 2 divisors, whose sum is σ = 15201002. Its totient is φ = 15201000.

The previous prime is 15200989. The next prime is 15201071. The reversal of 15201001 is 10010251.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14899600 + 301401 = 3860^2 + 549^2 .

It is an emirp because it is prime and its reverse (10010251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15201001 - 2¹⁹ = 14676713 is a prime.

It is not a weakly prime, because it can be changed into another prime (15201071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7600500 + 7600501.

It is an arithmetic number, because the mean of its divisors is an integer number (7600501).

Almost surely, 2^15201001 is an apocalyptic number.

It is an amenable number.

15201001 is a deficient number, since it is larger than the sum of its proper divisors (1).

15201001 is an equidigital number, since it uses as much as digits as its factorization.

15201001 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 10.

The square root of 15201001 is about 3898.8461113514. The cubic root of 15201001 is about 247.7179035299.

Adding to 15201001 its reverse (10010251), we get a palindrome (25211252).

The spelling of 15201001 in words is "fifteen million, two hundred one thousand, one".