45017861 has 8 divisors (see below), whose sum is σ = 52645824. Its totient is φ = 37689120.

The previous prime is 45017839. The next prime is 45017867. The reversal of 45017861 is 16871054.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45017861 - 2¹⁸ = 44755717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45017867) 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, 74480 + ... + 75081.

It is an arithmetic number, because the mean of its divisors is an integer number (6580728).

Almost surely, 2^45017861 is an apocalyptic number.

It is an amenable number.

45017861 is a deficient number, since it is larger than the sum of its proper divisors (7627963).

45017861 is a wasteful number, since it uses less digits than its factorization.

45017861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149611.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 45017861 is about 6709.5350807638. The cubic root of 45017861 is about 355.7363832401.

The spelling of 45017861 in words is "forty-five million, seventeen thousand, eight hundred sixty-one".