53140312 has 8 divisors (see below), whose sum is σ = 99638100. Its totient is φ = 26570152.

The previous prime is 53140289. The next prime is 53140331. The reversal of 53140312 is 21304135.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 53140312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3321262 + ... + 3321277.

Almost surely, 2^53140312 is an apocalyptic number.

It is an amenable number.

53140312 is a deficient number, since it is larger than the sum of its proper divisors (46497788).

53140312 is a wasteful number, since it uses less digits than its factorization.

53140312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642545 (or 6642541 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 53140312 is about 7289.7401874141. The cubic root of 53140312 is about 375.9597625570.

Adding to 53140312 its reverse (21304135), we get a palindrome (74444447).

The spelling of 53140312 in words is "fifty-three million, one hundred forty thousand, three hundred twelve".