15016238281 has 4 divisors (see below), whose sum is σ = 16381350864. Its totient is φ = 13651125700.

The previous prime is 15016238203. The next prime is 15016238333. The reversal of 15016238281 is 18283261051.

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 15016238281 - 2¹¹ = 15016236233 is a prime.

It is a super-2 number, since 2×15016238281² (a number of 21 digits) contains 22 as substring.

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 15016238281.

It is not an unprimeable number, because it can be changed into a prime (15016238201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682556275 + ... + 682556296.

It is an arithmetic number, because the mean of its divisors is an integer number (4095337716).

Almost surely, 2^15016238281 is an apocalyptic number.

15016238281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15016238281 is a deficient number, since it is larger than the sum of its proper divisors (1365112583).

15016238281 is a wasteful number, since it uses less digits than its factorization.

15016238281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365112582.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 15016238281 in words is "fifteen billion, sixteen million, two hundred thirty-eight thousand, two hundred eighty-one".