651164141 has 4 divisors (see below), whose sum is σ = 689467932. Its totient is φ = 612860352.

The previous prime is 651164131. The next prime is 651164149. The reversal of 651164141 is 141461156.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 466992100 + 184172041 = 21610^2 + 13571^2 .

It is a cyclic number.

It is not a de Polignac number, because 651164141 - 2⁶ = 651164077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651164149) 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, 19151870 + ... + 19151903.

It is an arithmetic number, because the mean of its divisors is an integer number (172366983).

Almost surely, 2^651164141 is an apocalyptic number.

It is an amenable number.

651164141 is a deficient number, since it is larger than the sum of its proper divisors (38303791).

651164141 is a wasteful number, since it uses less digits than its factorization.

651164141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38303790.

The product of its digits is 2880, while the sum is 29.

The square root of 651164141 is about 25517.9180381159. The cubic root of 651164141 is about 866.7559376649.

The spelling of 651164141 in words is "six hundred fifty-one million, one hundred sixty-four thousand, one hundred forty-one".