40120201 has 4 divisors (see below), whose sum is σ = 43767504. Its totient is φ = 36472900.

The previous prime is 40120139. The next prime is 40120217. The reversal of 40120201 is 10202104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40120201 - 2²¹ = 38023049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40120271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1823635 + ... + 1823656.

It is an arithmetic number, because the mean of its divisors is an integer number (10941876).

Almost surely, 2^40120201 is an apocalyptic number.

It is an amenable number.

40120201 is a deficient number, since it is larger than the sum of its proper divisors (3647303).

40120201 is a wasteful number, since it uses less digits than its factorization.

40120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647302.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 40120201 is about 6334.0509154884. The cubic root of 40120201 is about 342.3374147965.

Adding to 40120201 its reverse (10202104), we get a palindrome (50322305).

It can be divided in two parts, 401 and 20201, that added together give a palindrome (20602).

The spelling of 40120201 in words is "forty million, one hundred twenty thousand, two hundred one".