109746431 has 4 divisors (see below), whose sum is σ = 111606600. Its totient is φ = 107886264.

The previous prime is 109746421. The next prime is 109746443. The reversal of 109746431 is 134647901.

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 109746431 - 2¹⁰ = 109745407 is a prime.

It is a super-2 number, since 2×109746431² = 24088558234475522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109746391 and 109746400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109746421) 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, 929996 + ... + 930113.

It is an arithmetic number, because the mean of its divisors is an integer number (27901650).

Almost surely, 2^109746431 is an apocalyptic number.

109746431 is a deficient number, since it is larger than the sum of its proper divisors (1860169).

109746431 is an equidigital number, since it uses as much as digits as its factorization.

109746431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860168.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 109746431 is about 10475.9930794173. The cubic root of 109746431 is about 478.7735341002.

The spelling of 109746431 in words is "one hundred nine million, seven hundred forty-six thousand, four hundred thirty-one".