10191427 has 2 divisors, whose sum is σ = 10191428. Its totient is φ = 10191426.

The previous prime is 10191421. The next prime is 10191431. The reversal of 10191427 is 72419101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10191427 - 2⁷ = 10191299 is a prime.

It is a super-3 number, since 3×10191427³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (10191421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5095713 + 5095714.

It is an arithmetic number, because the mean of its divisors is an integer number (5095714).

Almost surely, 2^10191427 is an apocalyptic number.

10191427 is a deficient number, since it is larger than the sum of its proper divisors (1).

10191427 is an equidigital number, since it uses as much as digits as its factorization.

10191427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 10191427 is about 3192.4014471867. The cubic root of 10191427 is about 216.8095123775.

The spelling of 10191427 in words is "ten million, one hundred ninety-one thousand, four hundred twenty-seven".