40144233133 has 8 divisors (see below), whose sum is σ = 40998847896. Its totient is φ = 39293217600.

The previous prime is 40144233089. The next prime is 40144233137. The reversal of 40144233133 is 33133244104.

It can be written as a sum of positive squares in 4 ways, for example, as 1625460489 + 38518772644 = 40317^2 + 196262^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40144233133 - 2¹³ = 40144224941 is a prime.

It is a super-2 number, since 2×40144233133² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144233137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877258 + ... + 921883.

It is an arithmetic number, because the mean of its divisors is an integer number (5124855987).

Almost surely, 2^40144233133 is an apocalyptic number.

It is an amenable number.

40144233133 is a deficient number, since it is larger than the sum of its proper divisors (854614763).

40144233133 is a wasteful number, since it uses less digits than its factorization.

40144233133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799615.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 40144233133 its reverse (33133244104), we get a palindrome (73277477237).

The spelling of 40144233133 in words is "forty billion, one hundred forty-four million, two hundred thirty-three thousand, one hundred thirty-three".