774042131 has 4 divisors (see below), whose sum is σ = 799011264. Its totient is φ = 749073000.

The previous prime is 774042127. The next prime is 774042163. The reversal of 774042131 is 131240477.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 774042131 - 2² = 774042127 is a prime.

It is a super-2 number, since 2×774042131² = 1198282441126042322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 774042094 and 774042103.

It is not an unprimeable number, because it can be changed into a prime (774042431) 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, 12484520 + ... + 12484581.

It is an arithmetic number, because the mean of its divisors is an integer number (199752816).

Almost surely, 2^774042131 is an apocalyptic number.

774042131 is a deficient number, since it is larger than the sum of its proper divisors (24969133).

774042131 is a wasteful number, since it uses less digits than its factorization.

774042131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24969132.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 774042131 is about 27821.6126599448. The cubic root of 774042131 is about 918.1666905865.

The spelling of 774042131 in words is "seven hundred seventy-four million, forty-two thousand, one hundred thirty-one".