1306520034 has 16 divisors (see below), whose sum is σ = 2614819872. Its totient is φ = 435210048.

The previous prime is 1306520011. The next prime is 1306520051. The reversal of 1306520034 is 4300256031.

It is a happy number.

It is a super-2 number, since 2×1306520034² = 3413989198486722312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1306519986 and 1306520013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64519 + ... + 82314.

It is an arithmetic number, because the mean of its divisors is an integer number (163426242).

Almost surely, 2^1306520034 is an apocalyptic number.

1306520034 is an abundant number, since it is smaller than the sum of its proper divisors (1308299838).

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

1306520034 is a wasteful number, since it uses less digits than its factorization.

1306520034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148321.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1306520034 is about 36145.8162724263. The cubic root of 1306520034 is about 1093.2144357082.

Adding to 1306520034 its reverse (4300256031), we get a palindrome (5606776065).

The spelling of 1306520034 in words is "one billion, three hundred six million, five hundred twenty thousand, thirty-four".