42279133 has 8 divisors (see below), whose sum is σ = 47000576. Its totient is φ = 37767600.

The previous prime is 42279109. The next prime is 42279157. The reversal of 42279133 is 33197224.

It is an interprime number because it is at equal distance from previous prime (42279109) and next prime (42279157).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-42279133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42279095 and 42279104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42279533) 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 7 ways as a sum of consecutive naturals, for example, 52053 + ... + 52858.

It is an arithmetic number, because the mean of its divisors is an integer number (5875072).

Almost surely, 2^42279133 is an apocalyptic number.

It is an amenable number.

42279133 is a deficient number, since it is larger than the sum of its proper divisors (4721443).

42279133 is a wasteful number, since it uses less digits than its factorization.

42279133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104955.

The product of its digits is 9072, while the sum is 31.

The square root of 42279133 is about 6502.2406138192. The cubic root of 42279133 is about 348.3710233453.

The spelling of 42279133 in words is "forty-two million, two hundred seventy-nine thousand, one hundred thirty-three".