841686145 has 16 divisors (see below), whose sum is σ = 1026005760. Its totient is φ = 662747904.

The previous prime is 841686143. The next prime is 841686191. The reversal of 841686145 is 541686148.

It is a cyclic number.

It is not a de Polignac number, because 841686145 - 2¹ = 841686143 is a prime.

It is a super-2 number, since 2×841686145² = 1416871133369922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (841686143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129954 + ... + 136276.

It is an arithmetic number, because the mean of its divisors is an integer number (64125360).

Almost surely, 2^841686145 is an apocalyptic number.

It is an amenable number.

841686145 is a deficient number, since it is larger than the sum of its proper divisors (184319615).

841686145 is a wasteful number, since it uses less digits than its factorization.

841686145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6744.

The product of its digits is 184320, while the sum is 43.

The square root of 841686145 is about 29011.8276742435. The cubic root of 841686145 is about 944.1697007857.

The spelling of 841686145 in words is "eight hundred forty-one million, six hundred eighty-six thousand, one hundred forty-five".