83442137 has 8 divisors (see below), whose sum is σ = 92192256. Its totient is φ = 75118912.

The previous prime is 83442119. The next prime is 83442181. The reversal of 83442137 is 73124438.

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

It is a cyclic number.

It is not a de Polignac number, because 83442137 - 2⁸ = 83441881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83442187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106313 + ... + 107094.

It is an arithmetic number, because the mean of its divisors is an integer number (11524032).

Almost surely, 2^83442137 is an apocalyptic number.

It is an amenable number.

83442137 is a deficient number, since it is larger than the sum of its proper divisors (8750119).

83442137 is a wasteful number, since it uses less digits than its factorization.

83442137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213447.

The product of its digits is 16128, while the sum is 32.

The square root of 83442137 is about 9134.6667700579. Note that the first 3 decimals coincide. The cubic root of 83442137 is about 436.9802472103.

The spelling of 83442137 in words is "eighty-three million, four hundred forty-two thousand, one hundred thirty-seven".