20341145 has 16 divisors (see below), whose sum is σ = 27008640. Its totient is φ = 14582400.

The previous prime is 20341141. The next prime is 20341147. The reversal of 20341145 is 54114302.

It is not a de Polignac number, because 20341145 - 2² = 20341141 is a prime.

It is a super-2 number, since 2×20341145² = 827524359822050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20341141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301 + ... + 6509.

It is an arithmetic number, because the mean of its divisors is an integer number (1688040).

Almost surely, 2^20341145 is an apocalyptic number.

It is an amenable number.

20341145 is a deficient number, since it is larger than the sum of its proper divisors (6667495).

20341145 is a wasteful number, since it uses less digits than its factorization.

20341145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20341145 is about 4510.1158521705. The cubic root of 20341145 is about 272.9764187747.

Adding to 20341145 its reverse (54114302), we get a palindrome (74455447).

The spelling of 20341145 in words is "twenty million, three hundred forty-one thousand, one hundred forty-five".