774161513 has 8 divisors (see below), whose sum is σ = 790776648. Its totient is φ = 757620864.

The previous prime is 774161497. The next prime is 774161533. The reversal of 774161513 is 315161477.

It can be written as a sum of positive squares in 4 ways, for example, as 81577024 + 692584489 = 9032^2 + 26317^2 .

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 774161513 - 2⁴ = 774161497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (774161533) 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, 2645 + ... + 39437.

It is an arithmetic number, because the mean of its divisors is an integer number (98847081).

Almost surely, 2^774161513 is an apocalyptic number.

It is an amenable number.

774161513 is a deficient number, since it is larger than the sum of its proper divisors (16615135).

774161513 is a wasteful number, since it uses less digits than its factorization.

774161513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37243.

The product of its digits is 17640, while the sum is 35.

The square root of 774161513 is about 27823.7580675221. The cubic root of 774161513 is about 918.2138916955.

The spelling of 774161513 in words is "seven hundred seventy-four million, one hundred sixty-one thousand, five hundred thirteen".