15011081 has 2 divisors, whose sum is σ = 15011082. Its totient is φ = 15011080.

The previous prime is 15011071. The next prime is 15011089. The reversal of 15011081 is 18011051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13756681 + 1254400 = 3709^2 + 1120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15011081 is a prime.

It is a super-3 number, since 3×15011081³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15011089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7505540 + 7505541.

It is an arithmetic number, because the mean of its divisors is an integer number (7505541).

Almost surely, 2^15011081 is an apocalyptic number.

It is an amenable number.

15011081 is a deficient number, since it is larger than the sum of its proper divisors (1).

15011081 is an equidigital number, since it uses as much as digits as its factorization.

15011081 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 17.

The square root of 15011081 is about 3874.4136330547. The cubic root of 15011081 is about 246.6819215872.

The spelling of 15011081 in words is "fifteen million, eleven thousand, eighty-one".