11901601 has 8 divisors (see below), whose sum is σ = 12113640. Its totient is φ = 11691648.

The previous prime is 11901599. The next prime is 11901611. The reversal of 11901601 is 10610911.

11901601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3045025 + 8856576 = 1745^2 + 2976^2 .

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 11901601 - 2¹ = 11901599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11901611) 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, 14535 + ... + 15331.

It is an arithmetic number, because the mean of its divisors is an integer number (1514205).

Almost surely, 2^11901601 is an apocalyptic number.

It is an amenable number.

11901601 is a deficient number, since it is larger than the sum of its proper divisors (212039).

11901601 is a wasteful number, since it uses less digits than its factorization.

11901601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 11901601 is about 3449.8697076846. The cubic root of 11901601 is about 228.3153594935.

The spelling of 11901601 in words is "eleven million, nine hundred one thousand, six hundred one".