101700491 has 4 divisors (see below), whose sum is σ = 104981184. Its totient is φ = 98419800.

The previous prime is 101700479. The next prime is 101700493. The reversal of 101700491 is 194007101.

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

It is a cyclic number.

It is not a de Polignac number, because 101700491 - 2¹⁰ = 101699467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101700493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640300 + ... + 1640361.

It is an arithmetic number, because the mean of its divisors is an integer number (26245296).

Almost surely, 2^101700491 is an apocalyptic number.

101700491 is a deficient number, since it is larger than the sum of its proper divisors (3280693).

101700491 is an equidigital number, since it uses as much as digits as its factorization.

101700491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280692.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 101700491 is about 10084.6661323021. Note that the first 3 decimals coincide. The cubic root of 101700491 is about 466.7751027494.

Adding to 101700491 its reverse (194007101), we get a palindrome (295707592).

The spelling of 101700491 in words is "one hundred one million, seven hundred thousand, four hundred ninety-one".