1451681814 has 32 divisors (see below), whose sum is σ = 3334008960. Its totient is φ = 416750400.

The previous prime is 1451681783. The next prime is 1451681821. The reversal of 1451681814 is 4181861541.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577567 + ... + 580074.

It is an arithmetic number, because the mean of its divisors is an integer number (104187780).

Almost surely, 2^1451681814 is an apocalyptic number.

1451681814 is an abundant number, since it is smaller than the sum of its proper divisors (1882327146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1451681814 is a wasteful number, since it uses less digits than its factorization.

1451681814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157676.

The product of its digits is 30720, while the sum is 39.

The square root of 1451681814 is about 38100.9424292891. The cubic root of 1451681814 is about 1132.2886276177.

The spelling of 1451681814 in words is "one billion, four hundred fifty-one million, six hundred eighty-one thousand, eight hundred fourteen".