861270045 has 8 divisors (see below), whose sum is σ = 1378032096. Its totient is φ = 459344016.

The previous prime is 861270037. The next prime is 861270061. The reversal of 861270045 is 540072168.

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

It is not a de Polignac number, because 861270045 - 2³ = 861270037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 861269988 and 861270015.

It is a congruent number.

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, 28708987 + ... + 28709016.

It is an arithmetic number, because the mean of its divisors is an integer number (172254012).

Almost surely, 2^861270045 is an apocalyptic number.

It is an amenable number.

861270045 is a deficient number, since it is larger than the sum of its proper divisors (516762051).

861270045 is a wasteful number, since it uses less digits than its factorization.

861270045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57418011.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 861270045 is about 29347.4026959798. The cubic root of 861270045 is about 951.4364400591.

The spelling of 861270045 in words is "eight hundred sixty-one million, two hundred seventy thousand, forty-five".