651140046 has 20 divisors (see below), whose sum is σ = 1459036392. Its totient is φ = 217046628.

The previous prime is 651140011. The next prime is 651140081. The reversal of 651140046 is 640041156.

651140046 is a `hidden beast` number, since 651 + 1 + 4 + 0 + 0 + 4 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (651140011) and next prime (651140081).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 2009530 + ... + 2009853.

Almost surely, 2^651140046 is an apocalyptic number.

651140046 is an abundant number, since it is smaller than the sum of its proper divisors (807896346).

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

651140046 is a wasteful number, since it uses less digits than its factorization.

651140046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019397 (or 4019388 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 651140046 is about 25517.4459145111. The cubic root of 651140046 is about 866.7452466883.

The spelling of 651140046 in words is "six hundred fifty-one million, one hundred forty thousand, forty-six".