1671020144 has 20 divisors (see below), whose sum is σ = 3242404824. Its totient is φ = 834270528.

The previous prime is 1671020137. The next prime is 1671020167. The reversal of 1671020144 is 4410201761.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66302 + ... + 87965.

Almost surely, 2^1671020144 is an apocalyptic number.

It is an amenable number.

1671020144 is a deficient number, since it is larger than the sum of its proper divisors (1571384680).

1671020144 is a wasteful number, since it uses less digits than its factorization.

1671020144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154952 (or 154946 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1671020144 is about 40878.1132637014. The cubic root of 1671020144 is about 1186.6625275845.

The spelling of 1671020144 in words is "one billion, six hundred seventy-one million, twenty thousand, one hundred forty-four".