11901937 has 2 divisors, whose sum is σ = 11901938. Its totient is φ = 11901936.

The previous prime is 11901913. The next prime is 11901949. The reversal of 11901937 is 73910911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11587216 + 314721 = 3404^2 + 561^2 .

It is an emirp because it is prime and its reverse (73910911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11901937 - 2¹⁹ = 11377649 is a prime.

It is a super-2 number, since 2×11901937² = 283312208703938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11901899 and 11901908.

It is not a weakly prime, because it can be changed into another prime (11901907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5950968 + 5950969.

It is an arithmetic number, because the mean of its divisors is an integer number (5950969).

Almost surely, 2^11901937 is an apocalyptic number.

It is an amenable number.

11901937 is a deficient number, since it is larger than the sum of its proper divisors (1).

11901937 is an equidigital number, since it uses as much as digits as its factorization.

11901937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 31.

The square root of 11901937 is about 3449.9184048322. The cubic root of 11901937 is about 228.3175080347.

The spelling of 11901937 in words is "eleven million, nine hundred one thousand, nine hundred thirty-seven".