451666148 has 6 divisors (see below), whose sum is σ = 790415766. Its totient is φ = 225833072.

The previous prime is 451666129. The next prime is 451666177. The reversal of 451666148 is 841666154.

It can be written as a sum of positive squares in only one way, i.e., 285204544 + 166461604 = 16888^2 + 12902^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56458265 + ... + 56458272.

It is an arithmetic number, because the mean of its divisors is an integer number (131735961).

Almost surely, 2^451666148 is an apocalyptic number.

It is an amenable number.

451666148 is a deficient number, since it is larger than the sum of its proper divisors (338749618).

451666148 is a wasteful number, since it uses less digits than its factorization.

451666148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112916541 (or 112916539 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 451666148 is about 21252.4386365424. The cubic root of 451666148 is about 767.2540341524.

The spelling of 451666148 in words is "four hundred fifty-one million, six hundred sixty-six thousand, one hundred forty-eight".