42751437 has 4 divisors (see below), whose sum is σ = 57001920. Its totient is φ = 28500956.

The previous prime is 42751433. The next prime is 42751469. The reversal of 42751437 is 73415724.

42751437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42751437 - 2² = 42751433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42751398 and 42751407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42751433) 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 3 ways as a sum of consecutive naturals, for example, 7125237 + ... + 7125242.

It is an arithmetic number, because the mean of its divisors is an integer number (14250480).

Almost surely, 2^42751437 is an apocalyptic number.

It is an amenable number.

42751437 is a deficient number, since it is larger than the sum of its proper divisors (14250483).

42751437 is a wasteful number, since it uses less digits than its factorization.

42751437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14250482.

The product of its digits is 23520, while the sum is 33.

The square root of 42751437 is about 6538.4583045241. The cubic root of 42751437 is about 349.6634506377.

The spelling of 42751437 in words is "forty-two million, seven hundred fifty-one thousand, four hundred thirty-seven".