82770151 has 2 divisors, whose sum is σ = 82770152. Its totient is φ = 82770150.

The previous prime is 82770143. The next prime is 82770203. The reversal of 82770151 is 15107728.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82770151 - 2³ = 82770143 is a prime.

It is a super-4 number, since 4×82770151⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82770551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41385075 + 41385076.

It is an arithmetic number, because the mean of its divisors is an integer number (41385076).

Almost surely, 2^82770151 is an apocalyptic number.

82770151 is a deficient number, since it is larger than the sum of its proper divisors (1).

82770151 is an equidigital number, since it uses as much as digits as its factorization.

82770151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 82770151 is about 9097.8102310391. The cubic root of 82770151 is about 435.8040372206.

Adding to 82770151 its reverse (15107728), we get a palindrome (97877879).

The spelling of 82770151 in words is "eighty-two million, seven hundred seventy thousand, one hundred fifty-one".