651342 has 8 divisors (see below), whose sum is σ = 1302696. Its totient is φ = 217112.

The previous prime is 651331. The next prime is 651347. The reversal of 651342 is 243156.

It is a happy number.

651342 is nontrivially palindromic in base 15.

651342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

651342 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 651342.

It is not an unprimeable number, because it can be changed into a prime (651347) 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, 54273 + ... + 54284.

It is an arithmetic number, because the mean of its divisors is an integer number (162837).

2⁶⁵¹³⁴² is an apocalyptic number.

651342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

651342 is a wasteful number, since it uses less digits than its factorization.

651342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108562.

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

The square root of 651342 is about 807.0576187609. The cubic root of 651342 is about 86.6834845732.

Adding to 651342 its reverse (243156), we get a palindrome (894498).

It can be divided in two parts, 6513 and 42, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 651342 in words is "six hundred fifty-one thousand, three hundred forty-two".