11651001 has 8 divisors (see below), whose sum is σ = 16448544. Its totient is φ = 7310400.

The previous prime is 11650981. The next prime is 11651023. The reversal of 11651001 is 10015611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11651001 - 2¹⁰ = 11649977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11651201) 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, 114175 + ... + 114276.

It is an arithmetic number, because the mean of its divisors is an integer number (2056068).

Almost surely, 2^11651001 is an apocalyptic number.

It is an amenable number.

11651001 is a deficient number, since it is larger than the sum of its proper divisors (4797543).

11651001 is a wasteful number, since it uses less digits than its factorization.

11651001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228471.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 11651001 is about 3413.3562661990. The cubic root of 11651001 is about 226.7015101664.

Adding to 11651001 its reverse (10015611), we get a palindrome (21666612).

It can be divided in two parts, 1165100 and 1, that added together give a triangular number (1165101 = T₁₅₂₆).

The spelling of 11651001 in words is "eleven million, six hundred fifty-one thousand, one".