1913085147 has 8 divisors (see below), whose sum is σ = 2550982720. Its totient is φ = 1275288840.

The previous prime is 1913085143. The next prime is 1913085151. The reversal of 1913085147 is 7415803191.

It is an interprime number because it is at equal distance from previous prime (1913085143) and next prime (1913085151).

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

It is not a de Polignac number, because 1913085147 - 2² = 1913085143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1913085143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57072 + ... + 84162.

It is an arithmetic number, because the mean of its divisors is an integer number (318872840).

Almost surely, 2^1913085147 is an apocalyptic number.

1913085147 is a deficient number, since it is larger than the sum of its proper divisors (637897573).

1913085147 is a wasteful number, since it uses less digits than its factorization.

1913085147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50633.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 1913085147 is about 43738.8288251983. The cubic root of 1913085147 is about 1241.3991203219.

The spelling of 1913085147 in words is "one billion, nine hundred thirteen million, eighty-five thousand, one hundred forty-seven".