82451357 has 2 divisors, whose sum is σ = 82451358. Its totient is φ = 82451356.

The previous prime is 82451329. The next prime is 82451359. The reversal of 82451357 is 75315428.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53085796 + 29365561 = 7286^2 + 5419^2 .

It is a cyclic number.

It is not a de Polignac number, because 82451357 - 2⁶ = 82451293 is a prime.

It is a super-2 number, since 2×82451357² = 13596452542282898, which contains 22 as substring.

Together with 82451359, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82451359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41225678 + 41225679.

It is an arithmetic number, because the mean of its divisors is an integer number (41225679).

Almost surely, 2^82451357 is an apocalyptic number.

It is an amenable number.

82451357 is a deficient number, since it is larger than the sum of its proper divisors (1).

82451357 is an equidigital number, since it uses as much as digits as its factorization.

82451357 is an odious number, because the sum of its binary digits is odd.

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

The square root of 82451357 is about 9080.2729584523. The cubic root of 82451357 is about 435.2438092438.

The spelling of 82451357 in words is "eighty-two million, four hundred fifty-one thousand, three hundred fifty-seven".