61015007 has 2 divisors, whose sum is σ = 61015008. Its totient is φ = 61015006.

The previous prime is 61015001. The next prime is 61015013. The reversal of 61015007 is 70051016.

It is a balanced prime because it is at equal distance from previous prime (61015001) and next prime (61015013).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61015007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61015007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61015001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30507503 + 30507504.

It is an arithmetic number, because the mean of its divisors is an integer number (30507504).

Almost surely, 2^61015007 is an apocalyptic number.

61015007 is a deficient number, since it is larger than the sum of its proper divisors (1).

61015007 is an equidigital number, since it uses as much as digits as its factorization.

61015007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 61015007 is about 7811.2103415540. The cubic root of 61015007 is about 393.6819970913.

The spelling of 61015007 in words is "sixty-one million, fifteen thousand, seven".