1375505513 has 8 divisors (see below), whose sum is σ = 1533071520. Its totient is φ = 1226456640.

The previous prime is 1375505489. The next prime is 1375505519. The reversal of 1375505513 is 3155055731.

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

It is a cyclic number.

It is not a de Polignac number, because 1375505513 - 2¹⁸ = 1375243369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1375505519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2128943 + ... + 2129588.

It is an arithmetic number, because the mean of its divisors is an integer number (191633940).

Almost surely, 2^1375505513 is an apocalyptic number.

It is an amenable number.

1375505513 is a deficient number, since it is larger than the sum of its proper divisors (157566007).

1375505513 is a wasteful number, since it uses less digits than its factorization.

1375505513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258567.

The product of its (nonzero) digits is 39375, while the sum is 35.

The square root of 1375505513 is about 37087.8081449956. The cubic root of 1375505513 is about 1112.1263014180.

The spelling of 1375505513 in words is "one billion, three hundred seventy-five million, five hundred five thousand, five hundred thirteen".