188029249 has 4 divisors (see below), whose sum is σ = 188162260. Its totient is φ = 187896240.

The previous prime is 188029207. The next prime is 188029313. The reversal of 188029249 is 942920881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 942920881 = 7 ⋅134702983.

It can be written as a sum of positive squares in 2 ways, for example, as 24010000 + 164019249 = 4900^2 + 12807^2 .

It is a cyclic number.

It is not a de Polignac number, because 188029249 - 2¹¹ = 188027201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188029949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64362 + ... + 67219.

It is an arithmetic number, because the mean of its divisors is an integer number (47040565).

Almost surely, 2^188029249 is an apocalyptic number.

It is an amenable number.

188029249 is a deficient number, since it is larger than the sum of its proper divisors (133011).

188029249 is a wasteful number, since it uses less digits than its factorization.

188029249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133010.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 188029249 is about 13712.3757606040. The cubic root of 188029249 is about 572.8951388183.

The spelling of 188029249 in words is "one hundred eighty-eight million, twenty-nine thousand, two hundred forty-nine".