61014661 has 2 divisors, whose sum is σ = 61014662. Its totient is φ = 61014660.

The previous prime is 61014599. The next prime is 61014671. The reversal of 61014661 is 16641016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57289761 + 3724900 = 7569^2 + 1930^2 .

It is a cyclic number.

It is not a de Polignac number, because 61014661 - 2¹³ = 61006469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61014671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30507330 + 30507331.

It is an arithmetic number, because the mean of its divisors is an integer number (30507331).

Almost surely, 2^61014661 is an apocalyptic number.

It is an amenable number.

61014661 is a deficient number, since it is larger than the sum of its proper divisors (1).

61014661 is an equidigital number, since it uses as much as digits as its factorization.

61014661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 61014661 is about 7811.1881938665. The cubic root of 61014661 is about 393.6812529343.

Adding to 61014661 its reverse (16641016), we get a palindrome (77655677).

The spelling of 61014661 in words is "sixty-one million, fourteen thousand, six hundred sixty-one".