42136743 has 8 divisors (see below), whose sum is σ = 61289856. Its totient is φ = 25537400.

The previous prime is 42136741. The next prime is 42136763. The reversal of 42136743 is 34763124.

42136743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42136743 - 2¹ = 42136741 is a prime.

It is a super-2 number, since 2×42136743² = 3551010221296098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42136743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42136741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638403 + ... + 638468.

It is an arithmetic number, because the mean of its divisors is an integer number (7661232).

Almost surely, 2^42136743 is an apocalyptic number.

42136743 is a deficient number, since it is larger than the sum of its proper divisors (19153113).

42136743 is a wasteful number, since it uses less digits than its factorization.

42136743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276885.

The product of its digits is 12096, while the sum is 30.

The square root of 42136743 is about 6491.2820767549. The cubic root of 42136743 is about 347.9794957532.

Adding to 42136743 its reverse (34763124), we get a palindrome (76899867).

The spelling of 42136743 in words is "forty-two million, one hundred thirty-six thousand, seven hundred forty-three".