1374739505 has 4 divisors (see below), whose sum is σ = 1649687412. Its totient is φ = 1099791600.

The previous prime is 1374739489. The next prime is 1374739529. The reversal of 1374739505 is 5059374731.

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

It can be written as a sum of positive squares in 2 ways, for example, as 364008241 + 1010731264 = 19079^2 + 31792^2 .

It is not a de Polignac number, because 1374739505 - 2⁴ = 1374739489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137473946 + ... + 137473955.

It is an arithmetic number, because the mean of its divisors is an integer number (412421853).

Almost surely, 2^1374739505 is an apocalyptic number.

It is an amenable number.

1374739505 is a deficient number, since it is larger than the sum of its proper divisors (274947907).

1374739505 is an equidigital number, since it uses as much as digits as its factorization.

1374739505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274947906.

The product of its (nonzero) digits is 396900, while the sum is 44.

The square root of 1374739505 is about 37077.4797552369. The cubic root of 1374739505 is about 1111.9198183413.

The spelling of 1374739505 in words is "one billion, three hundred seventy-four million, seven hundred thirty-nine thousand, five hundred five".