15040061 has 2 divisors, whose sum is σ = 15040062. Its totient is φ = 15040060.

The previous prime is 15040057. The next prime is 15040063. The reversal of 15040061 is 16004051.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14784025 + 256036 = 3845^2 + 506^2 .

It is a cyclic number.

It is not a de Polignac number, because 15040061 - 2² = 15040057 is a prime.

Together with 15040063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15040063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7520030 + 7520031.

It is an arithmetic number, because the mean of its divisors is an integer number (7520031).

Almost surely, 2^15040061 is an apocalyptic number.

It is an amenable number.

15040061 is a deficient number, since it is larger than the sum of its proper divisors (1).

15040061 is an equidigital number, since it uses as much as digits as its factorization.

15040061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 15040061 is about 3878.1517505121. The cubic root of 15040061 is about 246.8405654264.

The spelling of 15040061 in words is "fifteen million, forty thousand, sixty-one".