82141770 has 16 divisors (see below), whose sum is σ = 197140320. Its totient is φ = 21904464.

The previous prime is 82141757. The next prime is 82141783. The reversal of 82141770 is 7714128.

It is an interprime number because it is at equal distance from previous prime (82141757) and next prime (82141783).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2738059 = 82141770 / (8 + 2 + 1 + 4 + 1 + 7 + 7 + 0).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369000 + ... + 1369059.

It is an arithmetic number, because the mean of its divisors is an integer number (12321270).

Almost surely, 2^82141770 is an apocalyptic number.

82141770 is an abundant number, since it is smaller than the sum of its proper divisors (114998550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82141770 is a wasteful number, since it uses less digits than its factorization.

82141770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738069.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 82141770 is about 9063.2096963493. The cubic root of 82141770 is about 434.6983772465.

Adding to 82141770 its reverse (7714128), we get a palindrome (89855898).

The spelling of 82141770 in words is "eighty-two million, one hundred forty-one thousand, seven hundred seventy".