1291600213 has 16 divisors (see below), whose sum is σ = 1393652736. Its totient is φ = 1193512320.

The previous prime is 1291600117. The next prime is 1291600237. The reversal of 1291600213 is 3120061921.

It is not a de Polignac number, because 1291600213 - 2¹³ = 1291592021 is a prime.

It is a super-2 number, since 2×1291600213² = 3336462220443290738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291600273) 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, 538545 + ... + 540937.

It is an arithmetic number, because the mean of its divisors is an integer number (87103296).

Almost surely, 2^1291600213 is an apocalyptic number.

It is an amenable number.

1291600213 is a deficient number, since it is larger than the sum of its proper divisors (102052523).

1291600213 is a wasteful number, since it uses less digits than its factorization.

1291600213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1291600213 is about 35938.8398950217. The cubic root of 1291600213 is about 1089.0371692792.

The spelling of 1291600213 in words is "one billion, two hundred ninety-one million, six hundred thousand, two hundred thirteen".