651326142 has 16 divisors (see below), whose sum is σ = 1303970832. Its totient is φ = 216888960.

The previous prime is 651326131. The next prime is 651326183. The reversal of 651326142 is 241623156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48459 + ... + 60422.

It is an arithmetic number, because the mean of its divisors is an integer number (81498177).

Almost surely, 2^651326142 is an apocalyptic number.

651326142 is an abundant number, since it is smaller than the sum of its proper divisors (652644690).

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

651326142 is a wasteful number, since it uses less digits than its factorization.

651326142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109883.

The product of its digits is 8640, while the sum is 30.

The square root of 651326142 is about 25521.0921004568. The cubic root of 651326142 is about 866.8278108312.

Adding to 651326142 its reverse (241623156), we get a palindrome (892949298).

The spelling of 651326142 in words is "six hundred fifty-one million, three hundred twenty-six thousand, one hundred forty-two".