63156245 has 8 divisors (see below), whose sum is σ = 76226616. Its totient is φ = 50232256.

The previous prime is 63156239. The next prime is 63156253. The reversal of 63156245 is 54265136.

It can be written as a sum of positive squares in 4 ways, for example, as 27646564 + 35509681 = 5258^2 + 5959^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 63156245 - 2²² = 58961941 is a prime.

It is a super-2 number, since 2×63156245² = 7977422565000050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35642 + ... + 37371.

It is an arithmetic number, because the mean of its divisors is an integer number (9528327).

Almost surely, 2^63156245 is an apocalyptic number.

It is an amenable number.

63156245 is a deficient number, since it is larger than the sum of its proper divisors (13070371).

63156245 is a wasteful number, since it uses less digits than its factorization.

63156245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73191.

The product of its digits is 21600, while the sum is 32.

The square root of 63156245 is about 7947.0903480456. The cubic root of 63156245 is about 398.2343951488.

The spelling of 63156245 in words is "sixty-three million, one hundred fifty-six thousand, two hundred forty-five".