61026013 has 2 divisors, whose sum is σ = 61026014. Its totient is φ = 61026012.

The previous prime is 61025983. The next prime is 61026019. The reversal of 61026013 is 31062016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60559524 + 466489 = 7782^2 + 683^2 .

It is a cyclic number.

It is not a de Polignac number, because 61026013 - 2¹³ = 61017821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61026019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30513006 + 30513007.

It is an arithmetic number, because the mean of its divisors is an integer number (30513007).

Almost surely, 2^61026013 is an apocalyptic number.

It is an amenable number.

61026013 is a deficient number, since it is larger than the sum of its proper divisors (1).

61026013 is an equidigital number, since it uses as much as digits as its factorization.

61026013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 61026013 is about 7811.9148100834. The cubic root of 61026013 is about 393.7056666975.

Adding to 61026013 its reverse (31062016), we get a palindrome (92088029).

The spelling of 61026013 in words is "sixty-one million, twenty-six thousand, thirteen".