109955947 has 2 divisors, whose sum is σ = 109955948. Its totient is φ = 109955946.

The previous prime is 109955929. The next prime is 109955959. The reversal of 109955947 is 749559901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109955947 - 2⁷ = 109955819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109955947.

It is not a weakly prime, because it can be changed into another prime (109955917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54977973 + 54977974.

It is an arithmetic number, because the mean of its divisors is an integer number (54977974).

Almost surely, 2^109955947 is an apocalyptic number.

109955947 is a deficient number, since it is larger than the sum of its proper divisors (1).

109955947 is an equidigital number, since it uses as much as digits as its factorization.

109955947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 510300, while the sum is 49.

The square root of 109955947 is about 10485.9881270198. The cubic root of 109955947 is about 479.0780146146.

The spelling of 109955947 in words is "one hundred nine million, nine hundred fifty-five thousand, nine hundred forty-seven".