61240453 has 2 divisors, whose sum is σ = 61240454. Its totient is φ = 61240452.

The previous prime is 61240433. The next prime is 61240537. The reversal of 61240453 is 35404216.

61240453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60808804 + 431649 = 7798^2 + 657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61240453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61240423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30620226 + 30620227.

It is an arithmetic number, because the mean of its divisors is an integer number (30620227).

Almost surely, 2^61240453 is an apocalyptic number.

It is an amenable number.

61240453 is a deficient number, since it is larger than the sum of its proper divisors (1).

61240453 is an equidigital number, since it uses as much as digits as its factorization.

61240453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 61240453 is about 7825.6279620232. The cubic root of 61240453 is about 394.1662765415.

Adding to 61240453 its reverse (35404216), we get a palindrome (96644669).

The spelling of 61240453 in words is "sixty-one million, two hundred forty thousand, four hundred fifty-three".