188729485 has 8 divisors (see below), whose sum is σ = 258829056. Its totient is φ = 129414480.

The previous prime is 188729479. The next prime is 188729491. The reversal of 188729485 is 584927881.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (188729479) and next prime (188729491).

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

It is not a de Polignac number, because 188729485 - 2⁷ = 188729357 is a prime.

It is a super-4 number, since 4×188729485⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

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, 2696101 + ... + 2696170.

It is an arithmetic number, because the mean of its divisors is an integer number (32353632).

Almost surely, 2^188729485 is an apocalyptic number.

It is an amenable number.

188729485 is a deficient number, since it is larger than the sum of its proper divisors (70099571).

188729485 is an equidigital number, since it uses as much as digits as its factorization.

188729485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392283.

The product of its digits is 1290240, while the sum is 52.

The square root of 188729485 is about 13737.8850264515. The cubic root of 188729485 is about 573.6054269678.

The spelling of 188729485 in words is "one hundred eighty-eight million, seven hundred twenty-nine thousand, four hundred eighty-five".