15140401 has 4 divisors (see below), whose sum is σ = 15165952. Its totient is φ = 15114852.

The previous prime is 15140381. The next prime is 15140449. The reversal of 15140401 is 10404151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15140401 - 2¹¹ = 15138353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15140471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11865 + ... + 13078.

It is an arithmetic number, because the mean of its divisors is an integer number (3791488).

Almost surely, 2^15140401 is an apocalyptic number.

It is an amenable number.

15140401 is a deficient number, since it is larger than the sum of its proper divisors (25551).

15140401 is an equidigital number, since it uses as much as digits as its factorization.

15140401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25550.

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

The square root of 15140401 is about 3891.0668202949. The cubic root of 15140401 is about 247.3882827436.

Adding to 15140401 its reverse (10404151), we get a palindrome (25544552).

The spelling of 15140401 in words is "fifteen million, one hundred forty thousand, four hundred one".