82145270 has 8 divisors (see below), whose sum is σ = 147861504. Its totient is φ = 32858104.

The previous prime is 82145233. The next prime is 82145299. The reversal of 82145270 is 7254128.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4107254 + ... + 4107273.

It is an arithmetic number, because the mean of its divisors is an integer number (18482688).

Almost surely, 2^82145270 is an apocalyptic number.

82145270 is a deficient number, since it is larger than the sum of its proper divisors (65716234).

82145270 is a wasteful number, since it uses less digits than its factorization.

82145270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8214534.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 82145270 is about 9063.4027826198. The cubic root of 82145270 is about 434.7045512174.

Adding to 82145270 its reverse (7254128), we get a palindrome (89399398).

The spelling of 82145270 in words is "eighty-two million, one hundred forty-five thousand, two hundred seventy".