3945181097 has 8 divisors (see below), whose sum is σ = 4634898240. Its totient is φ = 3310641360.

The previous prime is 3945181073. The next prime is 3945181111. The reversal of 3945181097 is 7901815493.

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

It is not a de Polignac number, because 3945181097 - 2¹⁰ = 3945180073 is a prime.

It is a super-2 number, since 2×3945181097² = 31128907776252246818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3945183097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13794197 + ... + 13794482.

It is an arithmetic number, because the mean of its divisors is an integer number (579362280).

Almost surely, 2^3945181097 is an apocalyptic number.

It is an amenable number.

3945181097 is a deficient number, since it is larger than the sum of its proper divisors (689717143).

3945181097 is a wasteful number, since it uses less digits than its factorization.

3945181097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27588703.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 3945181097 is about 62810.6766163206. The cubic root of 3945181097 is about 1580.1160381850.

The spelling of 3945181097 in words is "three billion, nine hundred forty-five million, one hundred eighty-one thousand, ninety-seven".