42273137 has 4 divisors (see below), whose sum is σ = 42808320. Its totient is φ = 41737956.

The previous prime is 42273113. The next prime is 42273139. The reversal of 42273137 is 73137224.

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 42273137 - 2¹² = 42269041 is a prime.

It is a super-2 number, since 2×42273137² = 3574036223641538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42273139) 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, 267473 + ... + 267630.

It is an arithmetic number, because the mean of its divisors is an integer number (10702080).

Almost surely, 2^42273137 is an apocalyptic number.

It is an amenable number.

42273137 is a deficient number, since it is larger than the sum of its proper divisors (535183).

42273137 is an equidigital number, since it uses as much as digits as its factorization.

42273137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535182.

The product of its digits is 7056, while the sum is 29.

The square root of 42273137 is about 6501.7795256376. The cubic root of 42273137 is about 348.3545539804.

The spelling of 42273137 in words is "forty-two million, two hundred seventy-three thousand, one hundred thirty-seven".