63140231 has 16 divisors (see below), whose sum is σ = 78962688. Its totient is φ = 49048800.

The previous prime is 63140201. The next prime is 63140237. The reversal of 63140231 is 13204136.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63140231 is a prime.

It is a super-2 number, since 2×63140231² = 7973377541466722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63140237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28421 + ... + 30561.

It is an arithmetic number, because the mean of its divisors is an integer number (4935168).

Almost surely, 2^63140231 is an apocalyptic number.

63140231 is a deficient number, since it is larger than the sum of its proper divisors (15822457).

63140231 is a wasteful number, since it uses less digits than its factorization.

63140231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 63140231 is about 7946.0827456049. The cubic root of 63140231 is about 398.2007333170.

Adding to 63140231 its reverse (13204136), we get a palindrome (76344367).

The spelling of 63140231 in words is "sixty-three million, one hundred forty thousand, two hundred thirty-one".