113778447 has 8 divisors (see below), whose sum is σ = 158300544. Its totient is φ = 72554328.

The previous prime is 113778443. The next prime is 113778461. The reversal of 113778447 is 744877311.

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

It is not a de Polignac number, because 113778447 - 2² = 113778443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113778399 and 113778408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113778443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824413 + ... + 824550.

It is an arithmetic number, because the mean of its divisors is an integer number (19787568).

Almost surely, 2^113778447 is an apocalyptic number.

113778447 is a deficient number, since it is larger than the sum of its proper divisors (44522097).

113778447 is a wasteful number, since it uses less digits than its factorization.

113778447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648989.

The product of its digits is 131712, while the sum is 42.

The square root of 113778447 is about 10666.6980364122. The cubic root of 113778447 is about 484.5664414649.

The spelling of 113778447 in words is "one hundred thirteen million, seven hundred seventy-eight thousand, four hundred forty-seven".