61310671 has 2 divisors, whose sum is σ = 61310672. Its totient is φ = 61310670.

The previous prime is 61310629. The next prime is 61310699. The reversal of 61310671 is 17601316.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61310671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61310471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30655335 + 30655336.

It is an arithmetic number, because the mean of its divisors is an integer number (30655336).

Almost surely, 2^61310671 is an apocalyptic number.

61310671 is a deficient number, since it is larger than the sum of its proper divisors (1).

61310671 is an equidigital number, since it uses as much as digits as its factorization.

61310671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 61310671 is about 7830.1130898602. The cubic root of 61310671 is about 394.3168687000.

Adding to 61310671 its reverse (17601316), we get a palindrome (78911987).

The spelling of 61310671 in words is "sixty-one million, three hundred ten thousand, six hundred seventy-one".