61523741 has 2 divisors, whose sum is σ = 61523742. Its totient is φ = 61523740.

The previous prime is 61523723. The next prime is 61523771. The reversal of 61523741 is 14732516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54612100 + 6911641 = 7390^2 + 2629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61523741 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61523771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30761870 + 30761871.

It is an arithmetic number, because the mean of its divisors is an integer number (30761871).

Almost surely, 2^61523741 is an apocalyptic number.

It is an amenable number.

61523741 is a deficient number, since it is larger than the sum of its proper divisors (1).

61523741 is an equidigital number, since it uses as much as digits as its factorization.

61523741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 61523741 is about 7843.7070955002. The cubic root of 61523741 is about 394.7731240004.

The spelling of 61523741 in words is "sixty-one million, five hundred twenty-three thousand, seven hundred forty-one".