1317506061 has 16 divisors (see below), whose sum is σ = 1783051200. Its totient is φ = 865211520.

The previous prime is 1317506041. The next prime is 1317506081. The reversal of 1317506061 is 1606057131.

It is an interprime number because it is at equal distance from previous prime (1317506041) and next prime (1317506081).

It is not a de Polignac number, because 1317506061 - 2¹⁰ = 1317505037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317506011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79321 + ... + 94481.

It is an arithmetic number, because the mean of its divisors is an integer number (111440700).

Almost surely, 2^1317506061 is an apocalyptic number.

It is an amenable number.

1317506061 is a deficient number, since it is larger than the sum of its proper divisors (465545139).

1317506061 is a wasteful number, since it uses less digits than its factorization.

1317506061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15596.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 1317506061 is about 36297.4663165351. The cubic root of 1317506061 is about 1096.2700278262.

The spelling of 1317506061 in words is "one billion, three hundred seventeen million, five hundred six thousand, sixty-one".