40143054 has 24 divisors (see below), whose sum is σ = 93394728. Its totient is φ = 11469360.

The previous prime is 40143041. The next prime is 40143079. The reversal of 40143054 is 45034104.

It is a super-2 number, since 2×40143054² = 3222929568893832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40143054.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67977 + ... + 68564.

It is an arithmetic number, because the mean of its divisors is an integer number (3891447).

Almost surely, 2^40143054 is an apocalyptic number.

40143054 is an abundant number, since it is smaller than the sum of its proper divisors (53251674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40143054 is a wasteful number, since it uses less digits than its factorization.

40143054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136560 (or 136553 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40143054 is about 6335.8546384841. The cubic root of 40143054 is about 342.4024024401.

Adding to 40143054 its reverse (45034104), we get a palindrome (85177158).

The spelling of 40143054 in words is "forty million, one hundred forty-three thousand, fifty-four".