15139801 has 4 divisors (see below), whose sum is σ = 15255504. Its totient is φ = 15024100.

The previous prime is 15139777. The next prime is 15139823. The reversal of 15139801 is 10893151.

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 15139801 - 2¹³ = 15131609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15139801.

It is not an unprimeable number, because it can be changed into a prime (15139841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57655 + ... + 57916.

It is an arithmetic number, because the mean of its divisors is an integer number (3813876).

Almost surely, 2^15139801 is an apocalyptic number.

It is an amenable number.

15139801 is a deficient number, since it is larger than the sum of its proper divisors (115703).

15139801 is a wasteful number, since it uses less digits than its factorization.

15139801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115702.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 15139801 is about 3890.9897198528. The cubic root of 15139801 is about 247.3850147780.

The spelling of 15139801 in words is "fifteen million, one hundred thirty-nine thousand, eight hundred one".