77022149 has 8 divisors (see below), whose sum is σ = 80015040. Its totient is φ = 74082400.

The previous prime is 77022133. The next prime is 77022151. The reversal of 77022149 is 94122077.

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

It is a cyclic number.

It is not a de Polignac number, because 77022149 - 2⁴ = 77022133 is a prime.

It is a super-2 number, since 2×77022149² = 11864822873156402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77022349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10319 + ... + 16140.

It is an arithmetic number, because the mean of its divisors is an integer number (10001880).

Almost surely, 2^77022149 is an apocalyptic number.

It is an amenable number.

77022149 is a deficient number, since it is larger than the sum of its proper divisors (2992891).

77022149 is a wasteful number, since it uses less digits than its factorization.

77022149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26571.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 77022149 is about 8776.2263530517. The cubic root of 77022149 is about 425.4728743554.

The spelling of 77022149 in words is "seventy-seven million, twenty-two thousand, one hundred forty-nine".