1347987274 has 4 divisors (see below), whose sum is σ = 2021980914. Its totient is φ = 673993636.

The previous prime is 1347987269. The next prime is 1347987287. The reversal of 1347987274 is 4727897431.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1152127249 + 195860025 = 33943^2 + 13995^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336996817 + ... + 336996820.

Almost surely, 2^1347987274 is an apocalyptic number.

1347987274 is a deficient number, since it is larger than the sum of its proper divisors (673993640).

1347987274 is an equidigital number, since it uses as much as digits as its factorization.

1347987274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673993639.

The product of its digits is 2370816, while the sum is 52.

The square root of 1347987274 is about 36714.9461936144. The cubic root of 1347987274 is about 1104.6599211448.

The spelling of 1347987274 in words is "one billion, three hundred forty-seven million, nine hundred eighty-seven thousand, two hundred seventy-four".