53142312 has 32 divisors (see below), whose sum is σ = 133562880. Its totient is φ = 17619840.

The previous prime is 53142311. The next prime is 53142317. The reversal of 53142312 is 21324135.

It is not an unprimeable number, because it can be changed into a prime (53142311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213 + ... + 10380.

It is an arithmetic number, because the mean of its divisors is an integer number (4173840).

Almost surely, 2^53142312 is an apocalyptic number.

It is an amenable number.

53142312 is an abundant number, since it is smaller than the sum of its proper divisors (80420568).

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

53142312 is a wasteful number, since it uses less digits than its factorization.

53142312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11793 (or 11789 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 53142312 is about 7289.8773652236. The cubic root of 53142312 is about 375.9644790648.

Adding to 53142312 its reverse (21324135), we get a palindrome (74466447).

It can be divided in two parts, 5314 and 2312, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 53142312 in words is "fifty-three million, one hundred forty-two thousand, three hundred twelve".