2148199531 has 8 divisors (see below), whose sum is σ = 2203020864. Its totient is φ = 2093758080.

The previous prime is 2148199523. The next prime is 2148199583. The reversal of 2148199531 is 1359918412.

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

It is a cyclic number.

It is not a de Polignac number, because 2148199531 - 2³ = 2148199523 is a prime.

It is a super-2 number, since 2×2148199531² = 9229522449977239922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148199631) 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, 83500 + ... + 106153.

It is an arithmetic number, because the mean of its divisors is an integer number (275377608).

Almost surely, 2^2148199531 is an apocalyptic number.

2148199531 is a deficient number, since it is larger than the sum of its proper divisors (54821333).

2148199531 is a wasteful number, since it uses less digits than its factorization.

2148199531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189941.

The product of its digits is 77760, while the sum is 43.

The square root of 2148199531 is about 46348.6734545877. The cubic root of 2148199531 is about 1290.3025012199.

The spelling of 2148199531 in words is "two billion, one hundred forty-eight million, one hundred ninety-nine thousand, five hundred thirty-one".