1315644146 has 8 divisors (see below), whose sum is σ = 1979121900. Its totient is φ = 655936848.

The previous prime is 1315644133. The next prime is 1315644193. The reversal of 1315644146 is 6414465131.

It can be written as a sum of positive squares in 2 ways, for example, as 1259469121 + 56175025 = 35489^2 + 7495^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 941741 + ... + 943136.

Almost surely, 2^1315644146 is an apocalyptic number.

1315644146 is a deficient number, since it is larger than the sum of its proper divisors (663477754).

1315644146 is a wasteful number, since it uses less digits than its factorization.

1315644146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885228.

The product of its digits is 34560, while the sum is 35.

The square root of 1315644146 is about 36271.8092463004. The cubic root of 1315644146 is about 1095.7533638158.

The spelling of 1315644146 in words is "one billion, three hundred fifteen million, six hundred forty-four thousand, one hundred forty-six".