868646145 has 32 divisors (see below), whose sum is σ = 1401948288. Its totient is φ = 459260928.

The previous prime is 868646137. The next prime is 868646147. The reversal of 868646145 is 541646868.

868646145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 868646145 - 2³ = 868646137 is a prime.

It is a super-2 number, since 2×868646145² = 1509092250446722050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 868646094 and 868646103.

It is not an unprimeable number, because it can be changed into a prime (868646147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1147107 + ... + 1147863.

It is an arithmetic number, because the mean of its divisors is an integer number (43810884).

Almost surely, 2^868646145 is an apocalyptic number.

It is an amenable number.

868646145 is a deficient number, since it is larger than the sum of its proper divisors (533302143).

868646145 is a wasteful number, since it uses less digits than its factorization.

868646145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329.

The product of its digits is 1105920, while the sum is 48.

The square root of 868646145 is about 29472.8034804971. The cubic root of 868646145 is about 954.1448243847.

The spelling of 868646145 in words is "eight hundred sixty-eight million, six hundred forty-six thousand, one hundred forty-five".