11899001 has 2 divisors, whose sum is σ = 11899002. Its totient is φ = 11899000.

The previous prime is 11898989. The next prime is 11899007. The reversal of 11899001 is 10099811.

11899001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11868025 + 30976 = 3445^2 + 176^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11899001 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p₇₈₁₈₄₁ and since 11899001 and 781841 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11899007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5949500 + 5949501.

It is an arithmetic number, because the mean of its divisors is an integer number (5949501).

Almost surely, 2^11899001 is an apocalyptic number.

It is an amenable number.

11899001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11899001 is an equidigital number, since it uses as much as digits as its factorization.

11899001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 11899001 is about 3449.4928612769. The cubic root of 11899001 is about 228.2987325101.

The spelling of 11899001 in words is "eleven million, eight hundred ninety-nine thousand, one".