1598136961 has 8 divisors (see below), whose sum is σ = 1610840000. Its totient is φ = 1585481040.

The previous prime is 1598136887. The next prime is 1598136971. The reversal of 1598136961 is 1696318951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1598136961 is a prime.

It is a super-2 number, since 2×1598136961² = 5108083492228631042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1598136971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57946 + ... + 80956.

It is an arithmetic number, because the mean of its divisors is an integer number (201355000).

Almost surely, 2^1598136961 is an apocalyptic number.

It is an amenable number.

1598136961 is a deficient number, since it is larger than the sum of its proper divisors (12703039).

1598136961 is a wasteful number, since it uses less digits than its factorization.

1598136961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23559.

The product of its digits is 349920, while the sum is 49.

The square root of 1598136961 is about 39976.7052294208. The cubic root of 1598136961 is about 1169.1529557160.

The spelling of 1598136961 in words is "one billion, five hundred ninety-eight million, one hundred thirty-six thousand, nine hundred sixty-one".