101912473 has 4 divisors (see below), whose sum is σ = 109751908. Its totient is φ = 94073040.

The previous prime is 101912441. The next prime is 101912509. The reversal of 101912473 is 374219101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 374219101 = 89 ⋅4204709.

It can be written as a sum of positive squares in 2 ways, for example, as 13307904 + 88604569 = 3648^2 + 9413^2 .

It is a cyclic number.

It is not a de Polignac number, because 101912473 - 2⁵ = 101912441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101918473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3919698 + ... + 3919723.

It is an arithmetic number, because the mean of its divisors is an integer number (27437977).

Almost surely, 2^101912473 is an apocalyptic number.

101912473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

101912473 is a deficient number, since it is larger than the sum of its proper divisors (7839435).

101912473 is an equidigital number, since it uses as much as digits as its factorization.

101912473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7839434.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 101912473 is about 10095.1707761682. The cubic root of 101912473 is about 467.0991891923.

The spelling of 101912473 in words is "one hundred one million, nine hundred twelve thousand, four hundred seventy-three".