40101245 has 4 divisors (see below), whose sum is σ = 48121500. Its totient is φ = 32080992.

The previous prime is 40101169. The next prime is 40101251. The reversal of 40101245 is 54210104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32024281 + 8076964 = 5659^2 + 2842^2 .

It is a cyclic number.

It is not a de Polignac number, because 40101245 - 2¹² = 40097149 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4010120 + ... + 4010129.

It is an arithmetic number, because the mean of its divisors is an integer number (12030375).

Almost surely, 2^40101245 is an apocalyptic number.

It is an amenable number.

40101245 is a deficient number, since it is larger than the sum of its proper divisors (8020255).

40101245 is an equidigital number, since it uses as much as digits as its factorization.

40101245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8020254.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 40101245 is about 6332.5543819220. The cubic root of 40101245 is about 342.2834904212.

Adding to 40101245 its reverse (54210104), we get a palindrome (94311349).

The spelling of 40101245 in words is "forty million, one hundred one thousand, two hundred forty-five".