61946453 has 16 divisors (see below), whose sum is σ = 67359600. Its totient is φ = 56749056.

The previous prime is 61946447. The next prime is 61946471. The reversal of 61946453 is 35464916.

It can be written as a sum of positive squares in 8 ways, for example, as 26030404 + 35916049 = 5102^2 + 5993^2 .

It is a cyclic number.

It is not a de Polignac number, because 61946453 - 2⁶ = 61946389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61946483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177323 + ... + 177671.

It is an arithmetic number, because the mean of its divisors is an integer number (4209975).

Almost surely, 2^61946453 is an apocalyptic number.

It is an amenable number.

61946453 is a deficient number, since it is larger than the sum of its proper divisors (5413147).

61946453 is a wasteful number, since it uses less digits than its factorization.

61946453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616.

The product of its digits is 77760, while the sum is 38.

The square root of 61946453 is about 7870.6069016309. The cubic root of 61946453 is about 395.6751855572.

The spelling of 61946453 in words is "sixty-one million, nine hundred forty-six thousand, four hundred fifty-three".