15136401 has 16 divisors (see below), whose sum is σ = 23810048. Its totient is φ = 8370000.

The previous prime is 15136393. The next prime is 15136403. The reversal of 15136401 is 10463151.

It is not a de Polignac number, because 15136401 - 2³ = 15136393 is a prime.

It is a super-2 number, since 2×15136401² = 458221270465602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15136403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10975 + ... + 12276.

It is an arithmetic number, because the mean of its divisors is an integer number (1488128).

Almost surely, 2^15136401 is an apocalyptic number.

It is an amenable number.

15136401 is a deficient number, since it is larger than the sum of its proper divisors (8673647).

15136401 is a wasteful number, since it uses less digits than its factorization.

15136401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23292.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 15136401 is about 3890.5527884865. The cubic root of 15136401 is about 247.3664946750.

Adding to 15136401 its reverse (10463151), we get a palindrome (25599552).

The spelling of 15136401 in words is "fifteen million, one hundred thirty-six thousand, four hundred one".