1671381146 has 16 divisors (see below), whose sum is σ = 2699542080. Its totient is φ = 773200320.

The previous prime is 1671381143. The next prime is 1671381149. The reversal of 1671381146 is 6411831761.

It is an interprime number because it is at equal distance from previous prime (1671381143) and next prime (1671381149).

It is not an unprimeable number, because it can be changed into a prime (1671381143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414590 + ... + 418601.

It is an arithmetic number, because the mean of its divisors is an integer number (168721380).

Almost surely, 2^1671381146 is an apocalyptic number.

1671381146 is a deficient number, since it is larger than the sum of its proper divisors (1028160934).

1671381146 is a wasteful number, since it uses less digits than its factorization.

1671381146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833269.

The product of its digits is 24192, while the sum is 38.

The square root of 1671381146 is about 40882.5286155345. The cubic root of 1671381146 is about 1186.7479757266.

The spelling of 1671381146 in words is "one billion, six hundred seventy-one million, three hundred eighty-one thousand, one hundred forty-six".