1374909547 has 4 divisors (see below), whose sum is σ = 1499901336.
Its totient is φ = 1249917760.
The previous prime is 1374909491. The next prime is 1374909593. The reversal of 1374909547 is 7459094731.
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 1374909547 - 215 = 1374876779 is a prime.
It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1374909547.
It is not an unprimeable number, because it can be changed into a prime (1374909947) 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, 62495878 + ... + 62495899.
It is an arithmetic number, because the mean of its divisors is an integer number (374975334).
Almost surely, 21374909547 is an apocalyptic number.
1374909547 is a deficient number, since it is larger than the sum of its proper divisors (124991789).
1374909547 is a wasteful number, since it uses less digits than its factorization.
1374909547 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 124991788.
The product of its (nonzero) digits is 952560, while the sum is 49.
The square root of 1374909547 is about 37079.7727474158.
The cubic root of 1374909547 is about 1111.9656610322.
The spelling of 1374909547 in words is "one billion, three hundred seventy-four million, nine hundred nine thousand, five hundred forty-seven".