40201031 has 4 divisors (see below), whose sum is σ = 43293432. Its totient is φ = 37108632.

The previous prime is 40200997. The next prime is 40201043. The reversal of 40201031 is 13010204.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40201031 - 2¹⁴ = 40184647 is a prime.

It is a super-2 number, since 2×40201031² = 3232245786925922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40201061) 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, 1546181 + ... + 1546206.

It is an arithmetic number, because the mean of its divisors is an integer number (10823358).

Almost surely, 2^40201031 is an apocalyptic number.

40201031 is a deficient number, since it is larger than the sum of its proper divisors (3092401).

40201031 is a wasteful number, since it uses less digits than its factorization.

40201031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092400.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 40201031 is about 6340.4282978360. The cubic root of 40201031 is about 342.5671624909.

Adding to 40201031 its reverse (13010204), we get a palindrome (53211235).

The spelling of 40201031 in words is "forty million, two hundred one thousand, thirty-one".