1585125338 has 4 divisors (see below), whose sum is σ = 2377688010. Its totient is φ = 792562668.

The previous prime is 1585125319. The next prime is 1585125343. The reversal of 1585125338 is 8335215851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8335215851 = 331 ⋅25181921.

It can be written as a sum of positive squares in only one way, i.e., 1556854849 + 28270489 = 39457^2 + 5317^2 .

It is a super-2 number, since 2×1585125338² = 5025244674339228488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1585125295 and 1585125304.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396281333 + ... + 396281336.

Almost surely, 2^1585125338 is an apocalyptic number.

1585125338 is a deficient number, since it is larger than the sum of its proper divisors (792562672).

1585125338 is an equidigital number, since it uses as much as digits as its factorization.

1585125338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792562671.

The product of its digits is 144000, while the sum is 41.

The square root of 1585125338 is about 39813.6325647384. The cubic root of 1585125338 is about 1165.9713237566.

The spelling of 1585125338 in words is "one billion, five hundred eighty-five million, one hundred twenty-five thousand, three hundred thirty-eight".