461857149 has 24 divisors (see below), whose sum is σ = 756260960. Its totient is φ = 269259552.

The previous prime is 461857093. The next prime is 461857183. The reversal of 461857149 is 941758164.

461857149 is a `hidden beast` number, since 461 + 85 + 71 + 49 = 666.

It is not a de Polignac number, because 461857149 - 2⁷ = 461857021 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461857049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101659 + ... + 106104.

Almost surely, 2^461857149 is an apocalyptic number.

It is an amenable number.

461857149 is a deficient number, since it is larger than the sum of its proper divisors (294403811).

461857149 is a wasteful number, since it uses less digits than its factorization.

461857149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207801 (or 207798 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 461857149 is about 21490.8619882963. The cubic root of 461857149 is about 772.9817198413.

The spelling of 461857149 in words is "four hundred sixty-one million, eight hundred fifty-seven thousand, one hundred forty-nine".