61299481 has 2 divisors, whose sum is σ = 61299482. Its totient is φ = 61299480.

The previous prime is 61299463. The next prime is 61299499. The reversal of 61299481 is 18499216.

It is a balanced prime because it is at equal distance from previous prime (61299463) and next prime (61299499).

It can be written as a sum of positive squares in only one way, i.e., 56851600 + 4447881 = 7540^2 + 2109^2 .

It is a cyclic number.

It is not a de Polignac number, because 61299481 - 2⁷ = 61299353 is a prime.

It is a super-2 number, since 2×61299481² = 7515252741738722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61293481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30649740 + 30649741.

It is an arithmetic number, because the mean of its divisors is an integer number (30649741).

Almost surely, 2^61299481 is an apocalyptic number.

It is an amenable number.

61299481 is a deficient number, since it is larger than the sum of its proper divisors (1).

61299481 is an equidigital number, since it uses as much as digits as its factorization.

61299481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 40.

The square root of 61299481 is about 7829.3985081869. The cubic root of 61299481 is about 394.2928779104.

The spelling of 61299481 in words is "sixty-one million, two hundred ninety-nine thousand, four hundred eighty-one".