1375617541 has 4 divisors (see below), whose sum is σ = 1375768800. Its totient is φ = 1375466284.

The previous prime is 1375617539. The next prime is 1375617547. The reversal of 1375617541 is 1457165731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1375617541 - 2¹ = 1375617539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1375617494 and 1375617503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375617547) 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, 61051 + ... + 80488.

It is an arithmetic number, because the mean of its divisors is an integer number (343942200).

Almost surely, 2^1375617541 is an apocalyptic number.

It is an amenable number.

1375617541 is a deficient number, since it is larger than the sum of its proper divisors (151259).

1375617541 is an equidigital number, since it uses as much as digits as its factorization.

1375617541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151258.

The product of its digits is 88200, while the sum is 40.

The square root of 1375617541 is about 37089.3184218853. The cubic root of 1375617541 is about 1112.1564929614.

The spelling of 1375617541 in words is "one billion, three hundred seventy-five million, six hundred seventeen thousand, five hundred forty-one".