15040007 has 2 divisors, whose sum is σ = 15040008. Its totient is φ = 15040006.

The previous prime is 15039967. The next prime is 15040013. The reversal of 15040007 is 70004051.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15040007 - 2⁶ = 15039943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15040037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7520003 + 7520004.

It is an arithmetic number, because the mean of its divisors is an integer number (7520004).

Almost surely, 2^15040007 is an apocalyptic number.

15040007 is a deficient number, since it is larger than the sum of its proper divisors (1).

15040007 is an equidigital number, since it uses as much as digits as its factorization.

15040007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 15040007 is about 3878.1447884265. The cubic root of 15040007 is about 246.8402700063.

Adding to 15040007 its reverse (70004051), we get a palindrome (85044058).

The spelling of 15040007 in words is "fifteen million, forty thousand, seven".