42872751 has 12 divisors (see below), whose sum is σ = 63601512. Its totient is φ = 27809136.

The previous prime is 42872729. The next prime is 42872773. The reversal of 42872751 is 15727824.

It is an interprime number because it is at equal distance from previous prime (42872729) and next prime (42872773).

It is not a de Polignac number, because 42872751 - 2¹⁹ = 42348463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42872251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64041 + ... + 64706.

It is an arithmetic number, because the mean of its divisors is an integer number (5300126).

Almost surely, 2^42872751 is an apocalyptic number.

42872751 is a deficient number, since it is larger than the sum of its proper divisors (20728761).

42872751 is a wasteful number, since it uses less digits than its factorization.

42872751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128790 (or 128787 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 42872751 is about 6547.7286901642. The cubic root of 42872751 is about 349.9938801651.

The spelling of 42872751 in words is "forty-two million, eight hundred seventy-two thousand, seven hundred fifty-one".