40543151 has 4 divisors (see below), whose sum is σ = 44228904. Its totient is φ = 36857400.

The previous prime is 40543141. The next prime is 40543159. The reversal of 40543151 is 15134504.

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 40543151 - 2¹⁴ = 40526767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40543159) 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, 1842860 + ... + 1842881.

It is an arithmetic number, because the mean of its divisors is an integer number (11057226).

Almost surely, 2^40543151 is an apocalyptic number.

40543151 is a deficient number, since it is larger than the sum of its proper divisors (3685753).

40543151 is a wasteful number, since it uses less digits than its factorization.

40543151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3685752.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 40543151 is about 6367.3503908612. The cubic root of 40543151 is about 343.5361938320.

Adding to 40543151 its reverse (15134504), we get a palindrome (55677655).

The spelling of 40543151 in words is "forty million, five hundred forty-three thousand, one hundred fifty-one".