83458121 has 4 divisors (see below), whose sum is σ = 84318612. Its totient is φ = 82597632.

The previous prime is 83458103. The next prime is 83458147. The reversal of 83458121 is 12185438.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63027721 + 20430400 = 7939^2 + 4520^2 .

It is a cyclic number.

It is not a de Polignac number, because 83458121 - 2¹⁴ = 83441737 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83458171) 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, 430100 + ... + 430293.

It is an arithmetic number, because the mean of its divisors is an integer number (21079653).

Almost surely, 2^83458121 is an apocalyptic number.

It is an amenable number.

83458121 is a deficient number, since it is larger than the sum of its proper divisors (860491).

83458121 is an equidigital number, since it uses as much as digits as its factorization.

83458121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860490.

The product of its digits is 7680, while the sum is 32.

The square root of 83458121 is about 9135.5416369255. The cubic root of 83458121 is about 437.0081477674.

The spelling of 83458121 in words is "eighty-three million, four hundred fifty-eight thousand, one hundred twenty-one".