861654545 has 8 divisors (see below), whose sum is σ = 1038541824. Its totient is φ = 686286064.

The previous prime is 861654523. The next prime is 861654553. The reversal of 861654545 is 545456168.

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 861654545 - 2⁶ = 861654481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 861654496 and 861654505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378449 + ... + 380718.

It is an arithmetic number, because the mean of its divisors is an integer number (129817728).

Almost surely, 2^861654545 is an apocalyptic number.

It is an amenable number.

861654545 is a deficient number, since it is larger than the sum of its proper divisors (176887279).

861654545 is a wasteful number, since it uses less digits than its factorization.

861654545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759399.

The product of its digits is 576000, while the sum is 44.

The square root of 861654545 is about 29353.9528002618. The cubic root of 861654545 is about 951.5780034350.

The spelling of 861654545 in words is "eight hundred sixty-one million, six hundred fifty-four thousand, five hundred forty-five".