461455144 has 8 divisors (see below), whose sum is σ = 865228410. Its totient is φ = 230727568.

The previous prime is 461455133. The next prime is 461455151. The reversal of 461455144 is 441554164.

It can be written as a sum of positive squares in only one way, i.e., 453264100 + 8191044 = 21290^2 + 2862^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28840939 + ... + 28840954.

Almost surely, 2^461455144 is an apocalyptic number.

It is an amenable number.

461455144 is a deficient number, since it is larger than the sum of its proper divisors (403773266).

461455144 is a wasteful number, since it uses less digits than its factorization.

461455144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57681899 (or 57681895 counting only the distinct ones).

The product of its digits is 38400, while the sum is 34.

The square root of 461455144 is about 21481.5070234842. The cubic root of 461455144 is about 772.7573844464.

The spelling of 461455144 in words is "four hundred sixty-one million, four hundred fifty-five thousand, one hundred forty-four".