1306161398 has 16 divisors (see below), whose sum is σ = 2053610496. Its totient is φ = 621879720.

The previous prime is 1306161361. The next prime is 1306161401. The reversal of 1306161398 is 8931616031.

It is a congruent number.

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, 53408 + ... + 73923.

It is an arithmetic number, because the mean of its divisors is an integer number (128350656).

Almost surely, 2^1306161398 is an apocalyptic number.

1306161398 is a deficient number, since it is larger than the sum of its proper divisors (747449098).

1306161398 is a wasteful number, since it uses less digits than its factorization.

1306161398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127579.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1306161398 is about 36140.8549705178. The cubic root of 1306161398 is about 1093.1143984792.

The spelling of 1306161398 in words is "one billion, three hundred six million, one hundred sixty-one thousand, three hundred ninety-eight".