774230143 has 4 divisors (see below), whose sum is σ = 795155320. Its totient is φ = 753304968.

The previous prime is 774230131. The next prime is 774230147. The reversal of 774230143 is 341032477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341032477 = 23 ⋅14827499.

It is a cyclic number.

It is not a de Polignac number, because 774230143 - 2⁵ = 774230111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774230147) 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, 10462533 + ... + 10462606.

It is an arithmetic number, because the mean of its divisors is an integer number (198788830).

Almost surely, 2^774230143 is an apocalyptic number.

774230143 is a deficient number, since it is larger than the sum of its proper divisors (20925177).

774230143 is a wasteful number, since it uses less digits than its factorization.

774230143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20925176.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 774230143 is about 27824.9913387228. The cubic root of 774230143 is about 918.2410243443.

The spelling of 774230143 in words is "seven hundred seventy-four million, two hundred thirty thousand, one hundred forty-three".