1613573252 has 18 divisors (see below), whose sum is σ = 2980196478. Its totient is φ = 764323488.

The previous prime is 1613573191. The next prime is 1613573321. The reversal of 1613573252 is 2523753161.

It can be written as a sum of positive squares in only one way, i.e., 1570853956 + 42719296 = 39634^2 + 6536^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 557273 + ... + 560160.

It is an arithmetic number, because the mean of its divisors is an integer number (165566471).

Almost surely, 2^1613573252 is an apocalyptic number.

It is an amenable number.

1613573252 is a deficient number, since it is larger than the sum of its proper divisors (1366623226).

1613573252 is a wasteful number, since it uses less digits than its factorization.

1613573252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117475 (or 1117454 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 1613573252 is about 40169.3073378170. The cubic root of 1613573252 is about 1172.9051558004.

The spelling of 1613573252 in words is "one billion, six hundred thirteen million, five hundred seventy-three thousand, two hundred fifty-two".