11420145 has 24 divisors (see below), whose sum is σ = 21595392. Its totient is φ = 5536800.

The previous prime is 11420131. The next prime is 11420173. The reversal of 11420145 is 54102411.

11420145 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11420145 - 2⁹ = 11419633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11041 + ... + 12030.

It is an arithmetic number, because the mean of its divisors is an integer number (899808).

Almost surely, 2^11420145 is an apocalyptic number.

11420145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11420145 is a deficient number, since it is larger than the sum of its proper divisors (10175247).

11420145 is a wasteful number, since it uses less digits than its factorization.

11420145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23093 (or 23090 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 11420145 is about 3379.3705035110. The cubic root of 11420145 is about 225.1942027013.

Adding to 11420145 its reverse (54102411), we get a palindrome (65522556).

The spelling of 11420145 in words is "eleven million, four hundred twenty thousand, one hundred forty-five".