15201401 has 2 divisors, whose sum is σ = 15201402. Its totient is φ = 15201400.

The previous prime is 15201391. The next prime is 15201419. The reversal of 15201401 is 10410251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12243001 + 2958400 = 3499^2 + 1720^2 .

It is an emirp because it is prime and its reverse (10410251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15201401 - 2¹⁴ = 15185017 is a prime.

It is not a weakly prime, because it can be changed into another prime (15201491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7600700 + 7600701.

It is an arithmetic number, because the mean of its divisors is an integer number (7600701).

Almost surely, 2^15201401 is an apocalyptic number.

It is an amenable number.

15201401 is a deficient number, since it is larger than the sum of its proper divisors (1).

15201401 is an equidigital number, since it uses as much as digits as its factorization.

15201401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 15201401 is about 3898.8974082425. The cubic root of 15201401 is about 247.7200763318.

Adding to 15201401 its reverse (10410251), we get a palindrome (25611652).

The spelling of 15201401 in words is "fifteen million, two hundred one thousand, four hundred one".