51142214 has 8 divisors (see below), whose sum is σ = 78786768. Its totient is φ = 24879960.

The previous prime is 51142213. The next prime is 51142241. The reversal of 51142214 is 41224115.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51142213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345482 + ... + 345629.

It is an arithmetic number, because the mean of its divisors is an integer number (9848346).

Almost surely, 2^51142214 is an apocalyptic number.

51142214 is a deficient number, since it is larger than the sum of its proper divisors (27644554).

51142214 is a wasteful number, since it uses less digits than its factorization.

51142214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691150.

The product of its digits is 320, while the sum is 20.

The square root of 51142214 is about 7151.3784685192. The cubic root of 51142214 is about 371.1873567815.

Adding to 51142214 its reverse (41224115), we get a palindrome (92366329).

The spelling of 51142214 in words is "fifty-one million, one hundred forty-two thousand, two hundred fourteen".