63213451 has 8 divisors (see below), whose sum is σ = 72386784. Its totient is φ = 54075840.

The previous prime is 63213439. The next prime is 63213457. The reversal of 63213451 is 15431236.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63213451 - 2⁵ = 63213419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63213457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5020 + ... + 12313.

It is an arithmetic number, because the mean of its divisors is an integer number (9048348).

Almost surely, 2^63213451 is an apocalyptic number.

63213451 is a deficient number, since it is larger than the sum of its proper divisors (9173333).

63213451 is a wasteful number, since it uses less digits than its factorization.

63213451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17861.

The product of its digits is 2160, while the sum is 25.

The square root of 63213451 is about 7950.6887123066. The cubic root of 63213451 is about 398.3545971543.

Adding to 63213451 its reverse (15431236), we get a palindrome (78644687).

The spelling of 63213451 in words is "sixty-three million, two hundred thirteen thousand, four hundred fifty-one".