11923065 has 128 divisors (see below), whose sum is σ = 28016640. Its totient is φ = 4665600.

The previous prime is 11923057. The next prime is 11923081. The reversal of 11923065 is 56032911.

It is not a de Polignac number, because 11923065 - 2³ = 11923057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 322227 + ... + 322263.

It is an arithmetic number, because the mean of its divisors is an integer number (218880).

Almost surely, 2^11923065 is an apocalyptic number.

11923065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11923065 is an abundant number, since it is smaller than the sum of its proper divisors (16093575).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11923065 is a wasteful number, since it uses less digits than its factorization.

11923065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 11923065 is about 3452.9791485035. The cubic root of 11923065 is about 228.4525292139.

Adding to 11923065 its reverse (56032911), we get a palindrome (67955976).

The spelling of 11923065 in words is "eleven million, nine hundred twenty-three thousand, sixty-five".