45681851 has 4 divisors (see below), whose sum is σ = 45708432. Its totient is φ = 45655272.

The previous prime is 45681847. The next prime is 45681917. The reversal of 45681851 is 15818654.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45681851 - 2² = 45681847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45681821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10520 + ... + 14213.

It is an arithmetic number, because the mean of its divisors is an integer number (11427108).

Almost surely, 2^45681851 is an apocalyptic number.

45681851 is a deficient number, since it is larger than the sum of its proper divisors (26581).

45681851 is a wasteful number, since it uses less digits than its factorization.

45681851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26580.

The product of its digits is 38400, while the sum is 38.

The square root of 45681851 is about 6758.8350327553. The cubic root of 45681851 is about 357.4768296392.

The spelling of 45681851 in words is "forty-five million, six hundred eighty-one thousand, eight hundred fifty-one".