651401330 has 8 divisors (see below), whose sum is σ = 1172522412. Its totient is φ = 260560528.

The previous prime is 651401327. The next prime is 651401351. The reversal of 651401330 is 33104156.

It is a happy number.

651401330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 602555209 + 48846121 = 24547^2 + 6989^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 651401296 and 651401305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32570057 + ... + 32570076.

Almost surely, 2^651401330 is an apocalyptic number.

651401330 is a deficient number, since it is larger than the sum of its proper divisors (521121082).

651401330 is a wasteful number, since it uses less digits than its factorization.

651401330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65140140.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 651401330 is about 25522.5651140319. The cubic root of 651401330 is about 866.8611645985.

Adding to 651401330 its reverse (33104156), we get a palindrome (684505486).

The spelling of 651401330 in words is "six hundred fifty-one million, four hundred one thousand, three hundred thirty".