677145111 has 4 divisors (see below), whose sum is σ = 902860152. Its totient is φ = 451430072.

The previous prime is 677145109. The next prime is 677145127. The reversal of 677145111 is 111541776.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 677145111 - 2¹ = 677145109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677145101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112857516 + ... + 112857521.

It is an arithmetic number, because the mean of its divisors is an integer number (225715038).

Almost surely, 2^677145111 is an apocalyptic number.

677145111 is a deficient number, since it is larger than the sum of its proper divisors (225715041).

677145111 is a wasteful number, since it uses less digits than its factorization.

677145111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225715040.

The product of its digits is 5880, while the sum is 33.

The square root of 677145111 is about 26022.0120474955. The cubic root of 677145111 is about 878.1335747883.

Adding to 677145111 its reverse (111541776), we get a palindrome (788686887).

The spelling of 677145111 in words is "six hundred seventy-seven million, one hundred forty-five thousand, one hundred eleven".