83374121 has 4 divisors (see below), whose sum is σ = 83592192. Its totient is φ = 83156052.

The previous prime is 83374117. The next prime is 83374127. The reversal of 83374121 is 12147338.

83374121 = T₄₅₉ + T₄₆₀ + ... + T₈₄₁.

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 83374121 - 2² = 83374117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83374127) 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 3 ways as a sum of consecutive naturals, for example, 108461 + ... + 109226.

It is an arithmetic number, because the mean of its divisors is an integer number (20898048).

Almost surely, 2^83374121 is an apocalyptic number.

It is an amenable number.

83374121 is a deficient number, since it is larger than the sum of its proper divisors (218071).

83374121 is a wasteful number, since it uses less digits than its factorization.

83374121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218070.

The product of its digits is 4032, while the sum is 29.

The square root of 83374121 is about 9130.9430509669. The cubic root of 83374121 is about 436.8614833624.

The spelling of 83374121 in words is "eighty-three million, three hundred seventy-four thousand, one hundred twenty-one".