774152145 has 24 divisors (see below), whose sum is σ = 1445085096. Its totient is φ = 381120768.

The previous prime is 774152123. The next prime is 774152153. The reversal of 774152145 is 541251477.

It can be written as a sum of positive squares in 4 ways, for example, as 159062544 + 615089601 = 12612^2 + 24801^2 .

It is not a de Polignac number, because 774152145 - 2¹⁵ = 774119377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 661084 + ... + 662253.

It is an arithmetic number, because the mean of its divisors is an integer number (60211879).

Almost surely, 2^774152145 is an apocalyptic number.

It is an amenable number.

774152145 is a deficient number, since it is larger than the sum of its proper divisors (670932951).

774152145 is a wasteful number, since it uses less digits than its factorization.

774152145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323361 (or 1323358 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 774152145 is about 27823.5897216732. The cubic root of 774152145 is about 918.2101879626.

The spelling of 774152145 in words is "seven hundred seventy-four million, one hundred fifty-two thousand, one hundred forty-five".