770025161 has 4 divisors (see below), whose sum is σ = 770081232. Its totient is φ = 769969092.

The previous prime is 770025131. The next prime is 770025163. The reversal of 770025161 is 161520077.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-770025161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770025163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8030 + ... + 40056.

It is an arithmetic number, because the mean of its divisors is an integer number (192520308).

Almost surely, 2^770025161 is an apocalyptic number.

It is an amenable number.

770025161 is a deficient number, since it is larger than the sum of its proper divisors (56071).

770025161 is a wasteful number, since it uses less digits than its factorization.

770025161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56070.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 770025161 is about 27749.3272170696. The cubic root of 770025161 is about 916.5756287477.

The spelling of 770025161 in words is "seven hundred seventy million, twenty-five thousand, one hundred sixty-one".