1671612101 has 16 divisors (see below), whose sum is σ = 1817468928. Its totient is φ = 1532823600.

The previous prime is 1671612079. The next prime is 1671612109. The reversal of 1671612101 is 1012161761.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1671612101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671612109) 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, 65336 + ... + 87246.

It is an arithmetic number, because the mean of its divisors is an integer number (113591808).

Almost surely, 2^1671612101 is an apocalyptic number.

It is an amenable number.

1671612101 is a deficient number, since it is larger than the sum of its proper divisors (145856827).

1671612101 is a wasteful number, since it uses less digits than its factorization.

1671612101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22072.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 1671612101 is about 40885.3531353222. The cubic root of 1671612101 is about 1186.8026356618.

Adding to 1671612101 its reverse (1012161761), we get a palindrome (2683773862).

The spelling of 1671612101 in words is "one billion, six hundred seventy-one million, six hundred twelve thousand, one hundred one".