770149 has 4 divisors (see below), whose sum is σ = 776160. Its totient is φ = 764140.

The previous prime is 770129. The next prime is 770167. The reversal of 770149 is 941077.

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 an emirpimes, since its reverse is a distinct semiprime: 941077 = 929 ⋅1013.

It is a cyclic number.

It is not a de Polignac number, because 770149 - 2¹¹ = 768101 is a prime.

It is a Duffinian number.

770149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2809 + ... + 3070.

It is an arithmetic number, because the mean of its divisors is an integer number (194040).

2⁷⁷⁰¹⁴⁹ is an apocalyptic number.

It is an amenable number.

770149 is a deficient number, since it is larger than the sum of its proper divisors (6011).

770149 is a wasteful number, since it uses less digits than its factorization.

770149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 770149 is about 877.5813352619. The cubic root of 770149 is about 91.6624762088.

It can be divided in two parts, 7701 and 49, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 770149 in words is "seven hundred seventy thousand, one hundred forty-nine".