1691914101 has 8 divisors (see below), whose sum is σ = 2258015904. Its totient is φ = 1126877520.

The previous prime is 1691914093. The next prime is 1691914123. The reversal of 1691914101 is 1014191961.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1691914101 - 2³ = 1691914093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1691914141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 262591 + ... + 268956.

It is an arithmetic number, because the mean of its divisors is an integer number (282251988).

Almost surely, 2^1691914101 is an apocalyptic number.

It is an amenable number.

1691914101 is a deficient number, since it is larger than the sum of its proper divisors (566101803).

1691914101 is a wasteful number, since it uses less digits than its factorization.

1691914101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532611.

The product of its (nonzero) digits is 1944, while the sum is 33.

The square root of 1691914101 is about 41132.8834510784. The cubic root of 1691914101 is about 1191.5879516320.

The spelling of 1691914101 in words is "one billion, six hundred ninety-one million, nine hundred fourteen thousand, one hundred one".