10191945 has 8 divisors (see below), whose sum is σ = 16307136. Its totient is φ = 5435696.

The previous prime is 10191943. The next prime is 10191977. The reversal of 10191945 is 54919101.

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

It is a cyclic number.

It is not a de Polignac number, because 10191945 - 2¹ = 10191943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10191943) 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, 339717 + ... + 339746.

It is an arithmetic number, because the mean of its divisors is an integer number (2038392).

Almost surely, 2^10191945 is an apocalyptic number.

10191945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10191945 is a deficient number, since it is larger than the sum of its proper divisors (6115191).

10191945 is an equidigital number, since it uses as much as digits as its factorization.

10191945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679471.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 10191945 is about 3192.4825763033. The cubic root of 10191945 is about 216.8131855767.

The spelling of 10191945 in words is "ten million, one hundred ninety-one thousand, nine hundred forty-five".