1306061500 has 24 divisors (see below), whose sum is σ = 2852439408. Its totient is φ = 522424400.

The previous prime is 1306061479. The next prime is 1306061503. The reversal of 1306061500 is 51606031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306061503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1305562 + ... + 1306561.

It is an arithmetic number, because the mean of its divisors is an integer number (118851642).

Almost surely, 2^1306061500 is an apocalyptic number.

1306061500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306061500 is an abundant number, since it is smaller than the sum of its proper divisors (1546377908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1306061500 is a wasteful number, since it uses less digits than its factorization.

1306061500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612142 (or 2612130 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1306061500 is about 36139.4728793877. The cubic root of 1306061500 is about 1093.0865298645.

Adding to 1306061500 its reverse (51606031), we get a palindrome (1357667531).

The spelling of 1306061500 in words is "one billion, three hundred six million, sixty-one thousand, five hundred".