42161337 has 16 divisors (see below), whose sum is σ = 62674560. Its totient is φ = 28011600.

The previous prime is 42161297. The next prime is 42161359. The reversal of 42161337 is 73316124.

42161337 is a `hidden beast` number, since 42 + 1 + 613 + 3 + 7 = 666.

It is not a de Polignac number, because 42161337 - 2⁸ = 42161081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 42161337.

It is not an unprimeable number, because it can be changed into a prime (42161237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5887 + ... + 10907.

It is an arithmetic number, because the mean of its divisors is an integer number (3917160).

Almost surely, 2^42161337 is an apocalyptic number.

It is an amenable number.

42161337 is a deficient number, since it is larger than the sum of its proper divisors (20513223).

42161337 is a wasteful number, since it uses less digits than its factorization.

42161337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5341 (or 5335 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 42161337 is about 6493.1761873524. The cubic root of 42161337 is about 348.0471844463.

The spelling of 42161337 in words is "forty-two million, one hundred sixty-one thousand, three hundred thirty-seven".