83251457 has 4 divisors (see below), whose sum is σ = 84029616. Its totient is φ = 82473300.

The previous prime is 83251447. The next prime is 83251459. The reversal of 83251457 is 75415238.

It is a happy number.

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: 75415238 = 2 ⋅37707619.

It is a cyclic number.

It is not a de Polignac number, because 83251457 - 2²⁰ = 82202881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83251459) 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, 388919 + ... + 389132.

It is an arithmetic number, because the mean of its divisors is an integer number (21007404).

Almost surely, 2^83251457 is an apocalyptic number.

It is an amenable number.

83251457 is a deficient number, since it is larger than the sum of its proper divisors (778159).

83251457 is a wasteful number, since it uses less digits than its factorization.

83251457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778158.

The product of its digits is 33600, while the sum is 35.

The square root of 83251457 is about 9124.2236382062. The cubic root of 83251457 is about 436.6471343619.

The spelling of 83251457 in words is "eighty-three million, two hundred fifty-one thousand, four hundred fifty-seven".