63931045 has 16 divisors (see below), whose sum is σ = 78877440. Its totient is φ = 49719744.

The previous prime is 63931037. The next prime is 63931069. The reversal of 63931045 is 54013936.

It is a cyclic number.

It is not a de Polignac number, because 63931045 - 2³ = 63931037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63930998 and 63931016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37471 + ... + 39139.

It is an arithmetic number, because the mean of its divisors is an integer number (4929840).

Almost surely, 2^63931045 is an apocalyptic number.

It is an amenable number.

63931045 is a deficient number, since it is larger than the sum of its proper divisors (14946395).

63931045 is a wasteful number, since it uses less digits than its factorization.

63931045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 63931045 is about 7995.6891510363. The cubic root of 63931045 is about 399.8562921263.

It can be divided in two parts, 639 and 31045, that added together give a square (31684 = 178²).

The spelling of 63931045 in words is "sixty-three million, nine hundred thirty-one thousand, forty-five".