1801801451 has 8 divisors (see below), whose sum is σ = 1817654784. Its totient is φ = 1785974400.

The previous prime is 1801801429. The next prime is 1801801459. The reversal of 1801801451 is 1541081081.

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 1801801451 - 2⁶ = 1801801387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1801801459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146621 + ... + 158433.

It is an arithmetic number, because the mean of its divisors is an integer number (227206848).

Almost surely, 2^1801801451 is an apocalyptic number.

1801801451 is a deficient number, since it is larger than the sum of its proper divisors (15853333).

1801801451 is a wasteful number, since it uses less digits than its factorization.

1801801451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13141.

The product of its (nonzero) digits is 1280, while the sum is 29.

The square root of 1801801451 is about 42447.6318656294. The cubic root of 1801801451 is about 1216.8460708069.

The spelling of 1801801451 in words is "one billion, eight hundred one million, eight hundred one thousand, four hundred fifty-one".