651130043 has 4 divisors (see below), whose sum is σ = 661804368. Its totient is φ = 640455720.

The previous prime is 651130021. The next prime is 651130063. The reversal of 651130043 is 340031156.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-651130043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651130013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5337071 + ... + 5337192.

It is an arithmetic number, because the mean of its divisors is an integer number (165451092).

Almost surely, 2^651130043 is an apocalyptic number.

651130043 is a deficient number, since it is larger than the sum of its proper divisors (10674325).

651130043 is a wasteful number, since it uses less digits than its factorization.

651130043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10674324.

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

The square root of 651130043 is about 25517.2499105997. The cubic root of 651130043 is about 866.7408082693.

Adding to 651130043 its reverse (340031156), we get a palindrome (991161199).

The spelling of 651130043 in words is "six hundred fifty-one million, one hundred thirty thousand, forty-three".