82451193 has 8 divisors (see below), whose sum is σ = 119929056. Its totient is φ = 49970400.

The previous prime is 82451183. The next prime is 82451209. The reversal of 82451193 is 39115428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82451193 - 2⁶ = 82451129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2498521 = 82451193 / (8 + 2 + 4 + 5 + 1 + 1 + 9 + 3).

It is not an unprimeable number, because it can be changed into a prime (82451183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249228 + ... + 1249293.

It is an arithmetic number, because the mean of its divisors is an integer number (14991132).

Almost surely, 2^82451193 is an apocalyptic number.

It is an amenable number.

82451193 is a deficient number, since it is larger than the sum of its proper divisors (37477863).

82451193 is a wasteful number, since it uses less digits than its factorization.

82451193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498535.

The product of its digits is 8640, while the sum is 33.

The square root of 82451193 is about 9080.2639278823. The cubic root of 82451193 is about 435.2435206695.

The spelling of 82451193 in words is "eighty-two million, four hundred fifty-one thousand, one hundred ninety-three".