83458157 has 4 divisors (see below), whose sum is σ = 84633696. Its totient is φ = 82282620.

The previous prime is 83458147. The next prime is 83458159. The reversal of 83458157 is 75185438.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75185438 = 2 ⋅37592719.

It is a cyclic number.

It is not a de Polignac number, because 83458157 - 2⁸ = 83457901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83458159) 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, 587663 + ... + 587804.

It is an arithmetic number, because the mean of its divisors is an integer number (21158424).

Almost surely, 2^83458157 is an apocalyptic number.

It is an amenable number.

83458157 is a deficient number, since it is larger than the sum of its proper divisors (1175539).

83458157 is a wasteful number, since it uses less digits than its factorization.

83458157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175538.

The product of its digits is 134400, while the sum is 41.

The square root of 83458157 is about 9135.5436072518. The cubic root of 83458157 is about 437.0082106025.

The spelling of 83458157 in words is "eighty-three million, four hundred fifty-eight thousand, one hundred fifty-seven".