63261312 has 32 divisors (see below), whose sum is σ = 168038880. Its totient is φ = 21086976.

The previous prime is 63261307. The next prime is 63261313. The reversal of 63261312 is 21316236.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×63261312² = 8003987191922688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (63261313) 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, 81988 + ... + 82755.

It is an arithmetic number, because the mean of its divisors is an integer number (5251215).

Almost surely, 2^63261312 is an apocalyptic number.

It is an amenable number.

63261312 is an abundant number, since it is smaller than the sum of its proper divisors (104777568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63261312 is a wasteful number, since it uses less digits than its factorization.

63261312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164760 (or 164748 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 63261312 is about 7953.6980078452. The cubic root of 63261312 is about 398.4551076171.

Adding to 63261312 its reverse (21316236), we get a palindrome (84577548).

It can be divided in two parts, 632613 and 12, that multiplied together give a triangular number (7591356 = T₃₈₉₆).

The spelling of 63261312 in words is "sixty-three million, two hundred sixty-one thousand, three hundred twelve".