45042861 has 8 divisors (see below), whose sum is σ = 60315840. Its totient is φ = 29899232.

The previous prime is 45042839. The next prime is 45042871. The reversal of 45042861 is 16824054.

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 45042861 - 2⁶ = 45042797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45042871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31521 + ... + 32918.

It is an arithmetic number, because the mean of its divisors is an integer number (7539480).

Almost surely, 2^45042861 is an apocalyptic number.

It is an amenable number.

45042861 is a deficient number, since it is larger than the sum of its proper divisors (15272979).

45042861 is a wasteful number, since it uses less digits than its factorization.

45042861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64675.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 45042861 is about 6711.3978424766. The cubic root of 45042861 is about 355.8022220251.

The spelling of 45042861 in words is "forty-five million, forty-two thousand, eight hundred sixty-one".