1314545378 has 4 divisors (see below), whose sum is σ = 1971818070. Its totient is φ = 657272688.

The previous prime is 1314545369. The next prime is 1314545399. The reversal of 1314545378 is 8735454131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8735454131 = 17 ⋅513850243.

It can be written as a sum of positive squares in only one way, i.e., 728082289 + 586463089 = 26983^2 + 24217^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328636343 + ... + 328636346.

Almost surely, 2^1314545378 is an apocalyptic number.

1314545378 is a deficient number, since it is larger than the sum of its proper divisors (657272692).

1314545378 is an equidigital number, since it uses as much as digits as its factorization.

1314545378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657272691.

The product of its digits is 201600, while the sum is 41.

The square root of 1314545378 is about 36256.6597744470. The cubic root of 1314545378 is about 1095.4482372202.

The spelling of 1314545378 in words is "one billion, three hundred fourteen million, five hundred forty-five thousand, three hundred seventy-eight".