1385652299 has 4 divisors (see below), whose sum is σ = 1411796736. Its totient is φ = 1359507864.

The previous prime is 1385652293. The next prime is 1385652313. The reversal of 1385652299 is 9922565831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1385652299 - 2²⁰ = 1384603723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1385652293) 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, 13072139 + ... + 13072244.

It is an arithmetic number, because the mean of its divisors is an integer number (352949184).

Almost surely, 2^1385652299 is an apocalyptic number.

1385652299 is a deficient number, since it is larger than the sum of its proper divisors (26144437).

1385652299 is an equidigital number, since it uses as much as digits as its factorization.

1385652299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26144436.

The product of its digits is 1166400, while the sum is 50.

The square root of 1385652299 is about 37224.3508875575. The cubic root of 1385652299 is about 1114.8542374155.

The spelling of 1385652299 in words is "one billion, three hundred eighty-five million, six hundred fifty-two thousand, two hundred ninety-nine".