63315461 has 4 divisors (see below), whose sum is σ = 69071424. Its totient is φ = 57559500.

The previous prime is 63315407. The next prime is 63315487. The reversal of 63315461 is 16451336.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63315461 - 2⁶ = 63315397 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 (63315491) 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, 2877965 + ... + 2877986.

It is an arithmetic number, because the mean of its divisors is an integer number (17267856).

Almost surely, 2^63315461 is an apocalyptic number.

It is an amenable number.

63315461 is a deficient number, since it is larger than the sum of its proper divisors (5755963).

63315461 is a wasteful number, since it uses less digits than its factorization.

63315461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755962.

The product of its digits is 6480, while the sum is 29.

The square root of 63315461 is about 7957.1012938130. The cubic root of 63315461 is about 398.5687620864.

Adding to 63315461 its reverse (16451336), we get a palindrome (79766797).

The spelling of 63315461 in words is "sixty-three million, three hundred fifteen thousand, four hundred sixty-one".