11481901 has 2 divisors, whose sum is σ = 11481902. Its totient is φ = 11481900.

The previous prime is 11481893. The next prime is 11481923. The reversal of 11481901 is 10918411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8259876 + 3222025 = 2874^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 11481901 - 2³ = 11481893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11481961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5740950 + 5740951.

It is an arithmetic number, because the mean of its divisors is an integer number (5740951).

Almost surely, 2^11481901 is an apocalyptic number.

It is an amenable number.

11481901 is a deficient number, since it is larger than the sum of its proper divisors (1).

11481901 is an equidigital number, since it uses as much as digits as its factorization.

11481901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 11481901 is about 3388.4953888120. The cubic root of 11481901 is about 225.5993960402.

The spelling of 11481901 in words is "eleven million, four hundred eighty-one thousand, nine hundred one".