40146543 has 8 divisors (see below), whose sum is σ = 59476400. Its totient is φ = 26764344.

The previous prime is 40146529. The next prime is 40146551. The reversal of 40146543 is 34564104.

40146543 is a `hidden beast` number, since 4 + 0 + 1 + 4 + 654 + 3 = 666.

It is not a de Polignac number, because 40146543 - 2⁸ = 40146287 is a prime.

It is a super-2 number, since 2×40146543² = 3223489829701698, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1486909 = 40146543 / (4 + 0 + 1 + 4 + 6 + 5 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40146593) 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, 743428 + ... + 743481.

It is an arithmetic number, because the mean of its divisors is an integer number (7434550).

Almost surely, 2^40146543 is an apocalyptic number.

40146543 is a deficient number, since it is larger than the sum of its proper divisors (19329857).

40146543 is a wasteful number, since it uses less digits than its factorization.

40146543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486918 (or 1486912 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 40146543 is about 6336.1299702579. The cubic root of 40146543 is about 342.4123220256.

The spelling of 40146543 in words is "forty million, one hundred forty-six thousand, five hundred forty-three".