61071007 has 2 divisors, whose sum is σ = 61071008. Its totient is φ = 61071006.

The previous prime is 61070927. The next prime is 61071037. The reversal of 61071007 is 70017016.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61071007 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 (61071037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30535503 + 30535504.

It is an arithmetic number, because the mean of its divisors is an integer number (30535504).

Almost surely, 2^61071007 is an apocalyptic number.

61071007 is a deficient number, since it is larger than the sum of its proper divisors (1).

61071007 is an equidigital number, since it uses as much as digits as its factorization.

61071007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 61071007 is about 7814.7941111715. The cubic root of 61071007 is about 393.8024016259.

It can be divided in two parts, 610 and 71007, that added together give a palindrome (71617).

The spelling of 61071007 in words is "sixty-one million, seventy-one thousand, seven".