40143212254 has 8 divisors (see below), whose sum is σ = 60233545728. Its totient is φ = 20065363680.

The previous prime is 40143212251. The next prime is 40143212257. The reversal of 40143212254 is 45221234104.

It is an interprime number because it is at equal distance from previous prime (40143212251) and next prime (40143212257).

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

It is a super-2 number, since 2×40143212254² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40143212251) 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, 3113182 + ... + 3126049.

It is an arithmetic number, because the mean of its divisors is an integer number (7529193216).

Almost surely, 2^40143212254 is an apocalyptic number.

40143212254 is a deficient number, since it is larger than the sum of its proper divisors (20090333474).

40143212254 is a wasteful number, since it uses less digits than its factorization.

40143212254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242450.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 40143212254 its reverse (45221234104), we get a palindrome (85364446358).

The spelling of 40143212254 in words is "forty billion, one hundred forty-three million, two hundred twelve thousand, two hundred fifty-four".