1375541479 has 4 divisors (see below), whose sum is σ = 1481352376. Its totient is φ = 1269730584.

The previous prime is 1375541477. The next prime is 1375541561. The reversal of 1375541479 is 9741455731.

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 1375541479 - 2¹ = 1375541477 is a prime.

It is a super-2 number, since 2×1375541479² = 3784228720899014882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375541477) 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, 52905429 + ... + 52905454.

It is an arithmetic number, because the mean of its divisors is an integer number (370338094).

Almost surely, 2^1375541479 is an apocalyptic number.

1375541479 is a deficient number, since it is larger than the sum of its proper divisors (105810897).

1375541479 is a wasteful number, since it uses less digits than its factorization.

1375541479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105810896.

The product of its digits is 529200, while the sum is 46.

The square root of 1375541479 is about 37088.2930181479. The cubic root of 1375541479 is about 1112.1359944328.

The spelling of 1375541479 in words is "one billion, three hundred seventy-five million, five hundred forty-one thousand, four hundred seventy-nine".