187483913 has 4 divisors (see below), whose sum is σ = 191844048. Its totient is φ = 183123780.

The previous prime is 187483897. The next prime is 187483937. The reversal of 187483913 is 319384781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 319384781 = 151 ⋅2115131.

It is a cyclic number.

It is not a de Polignac number, because 187483913 - 2⁴ = 187483897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (187483943) 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 3 ways as a sum of consecutive naturals, for example, 2180003 + ... + 2180088.

It is an arithmetic number, because the mean of its divisors is an integer number (47961012).

Almost surely, 2^187483913 is an apocalyptic number.

It is an amenable number.

187483913 is a deficient number, since it is larger than the sum of its proper divisors (4360135).

187483913 is an equidigital number, since it uses as much as digits as its factorization.

187483913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360134.

The product of its digits is 145152, while the sum is 44.

The square root of 187483913 is about 13692.4765108435. The cubic root of 187483913 is about 572.3407519036.

The spelling of 187483913 in words is "one hundred eighty-seven million, four hundred eighty-three thousand, nine hundred thirteen".