461722147 has 8 divisors (see below), whose sum is σ = 466527600. Its totient is φ = 456927264.

The previous prime is 461722139. The next prime is 461722187. The reversal of 461722147 is 741227164.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 461722147 - 2³ = 461722139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461722127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108993 + ... + 113149.

It is an arithmetic number, because the mean of its divisors is an integer number (58315950).

Almost surely, 2^461722147 is an apocalyptic number.

461722147 is a deficient number, since it is larger than the sum of its proper divisors (4805453).

461722147 is a wasteful number, since it uses less digits than its factorization.

461722147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285.

The product of its digits is 18816, while the sum is 34.

The square root of 461722147 is about 21487.7208423788. The cubic root of 461722147 is about 772.9063976717.

The spelling of 461722147 in words is "four hundred sixty-one million, seven hundred twenty-two thousand, one hundred forty-seven".