1677157147 has 4 divisors (see below), whose sum is σ = 1686526920. Its totient is φ = 1667787376.

The previous prime is 1677157121. The next prime is 1677157159. The reversal of 1677157147 is 7417517761.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1677157147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1677157097 and 1677157106.

It is not an unprimeable number, because it can be changed into a prime (1677157177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4684618 + ... + 4684975.

It is an arithmetic number, because the mean of its divisors is an integer number (421631730).

Almost surely, 2^1677157147 is an apocalyptic number.

1677157147 is a deficient number, since it is larger than the sum of its proper divisors (9369773).

1677157147 is an equidigital number, since it uses as much as digits as its factorization.

1677157147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9369772.

The product of its digits is 288120, while the sum is 46.

The square root of 1677157147 is about 40953.1091249492. The cubic root of 1677157147 is about 1188.1134684650.

The spelling of 1677157147 in words is "one billion, six hundred seventy-seven million, one hundred fifty-seven thousand, one hundred forty-seven".