1313170145 has 32 divisors (see below), whose sum is σ = 1853300736. Its totient is φ = 874368000.

The previous prime is 1313170129. The next prime is 1313170147. The reversal of 1313170145 is 5410713131.

It is not a de Polignac number, because 1313170145 - 2⁴ = 1313170129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1313170147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1140320 + ... + 1141470.

It is an arithmetic number, because the mean of its divisors is an integer number (57915648).

Almost surely, 2^1313170145 is an apocalyptic number.

It is an amenable number.

1313170145 is a deficient number, since it is larger than the sum of its proper divisors (540130591).

1313170145 is a wasteful number, since it uses less digits than its factorization.

1313170145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1313170145 is about 36237.6895648715. The cubic root of 1313170145 is about 1095.0660969394.

Adding to 1313170145 its reverse (5410713131), we get a palindrome (6723883276).

The spelling of 1313170145 in words is "one billion, three hundred thirteen million, one hundred seventy thousand, one hundred forty-five".