61013770 has 16 divisors (see below), whose sum is σ = 110020680. Its totient is φ = 24361984.

The previous prime is 61013747. The next prime is 61013791. The reversal of 61013770 is 7731016.

It can be written as a sum of positive squares in 4 ways, for example, as 59028489 + 1985281 = 7683^2 + 1409^2 .

It is a super-2 number, since 2×61013770² = 7445360259225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786 + ... + 11074.

Almost surely, 2^61013770 is an apocalyptic number.

61013770 is a deficient number, since it is larger than the sum of its proper divisors (49006910).

61013770 is a wasteful number, since it uses less digits than its factorization.

61013770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10889.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 61013770 is about 7811.1311600817. The cubic root of 61013770 is about 393.6793366097.

Adding to 61013770 its reverse (7731016), we get a palindrome (68744786).

The spelling of 61013770 in words is "sixty-one million, thirteen thousand, seven hundred seventy".