1352539994 has 8 divisors (see below), whose sum is σ = 2184872340. Its totient is φ = 624249216.

The previous prime is 1352539973. The next prime is 1352539997. The reversal of 1352539994 is 4999352531.

It can be written as a sum of positive squares in 2 ways, for example, as 1252239769 + 100300225 = 35387^2 + 10015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1352539997) 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, 26010359 + ... + 26010410.

Almost surely, 2^1352539994 is an apocalyptic number.

1352539994 is a deficient number, since it is larger than the sum of its proper divisors (832332346).

1352539994 is a wasteful number, since it uses less digits than its factorization.

1352539994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52020784.

The product of its digits is 1312200, while the sum is 50.

The square root of 1352539994 is about 36776.8948390154. The cubic root of 1352539994 is about 1105.9021574025.

The spelling of 1352539994 in words is "one billion, three hundred fifty-two million, five hundred thirty-nine thousand, nine hundred ninety-four".