61310453 has 4 divisors (see below), whose sum is σ = 62467308. Its totient is φ = 60153600.

The previous prime is 61310423. The next prime is 61310461. The reversal of 61310453 is 35401316.

It is a happy number.

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 17247409 + 44063044 = 4153^2 + 6638^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61310453 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 (61310423) 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, 578348 + ... + 578453.

It is an arithmetic number, because the mean of its divisors is an integer number (15616827).

Almost surely, 2^61310453 is an apocalyptic number.

It is an amenable number.

61310453 is a deficient number, since it is larger than the sum of its proper divisors (1156855).

61310453 is a wasteful number, since it uses less digits than its factorization.

61310453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156854.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 61310453 is about 7830.0991692315. The cubic root of 61310453 is about 394.3164013470.

Adding to 61310453 its reverse (35401316), we get a palindrome (96711769).

The spelling of 61310453 in words is "sixty-one million, three hundred ten thousand, four hundred fifty-three".