61324453 has 4 divisors (see below), whose sum is σ = 62164588. Its totient is φ = 60484320.

The previous prime is 61324451. The next prime is 61324469. The reversal of 61324453 is 35442316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41770369 + 19554084 = 6463^2 + 4422^2 .

It is a cyclic number.

It is not a de Polignac number, because 61324453 - 2¹ = 61324451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61324451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419958 + ... + 420103.

It is an arithmetic number, because the mean of its divisors is an integer number (15541147).

Almost surely, 2^61324453 is an apocalyptic number.

It is an amenable number.

61324453 is a deficient number, since it is larger than the sum of its proper divisors (840135).

61324453 is an equidigital number, since it uses as much as digits as its factorization.

61324453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840134.

The product of its digits is 8640, while the sum is 28.

The square root of 61324453 is about 7830.9931043259. The cubic root of 61324453 is about 394.3464125942.

Adding to 61324453 its reverse (35442316), we get a palindrome (96766769).

It can be divided in two parts, 6132 and 4453, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 61324453 in words is "sixty-one million, three hundred twenty-four thousand, four hundred fifty-three".