42751369 has 4 divisors (see below), whose sum is σ = 42966400. Its totient is φ = 42536340.

The previous prime is 42751367. The next prime is 42751409. The reversal of 42751369 is 96315724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42751369 - 2¹ = 42751367 is a prime.

It is a super-2 number, since 2×42751369² = 3655359102748322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42751367) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 107217 + ... + 107614.

It is an arithmetic number, because the mean of its divisors is an integer number (10741600).

Almost surely, 2^42751369 is an apocalyptic number.

It is an amenable number.

42751369 is a deficient number, since it is larger than the sum of its proper divisors (215031).

42751369 is a wasteful number, since it uses less digits than its factorization.

42751369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215030.

The product of its digits is 45360, while the sum is 37.

The square root of 42751369 is about 6538.4531045194. The cubic root of 42751369 is about 349.6632652473.

The spelling of 42751369 in words is "forty-two million, seven hundred fifty-one thousand, three hundred sixty-nine".