188315049 has 32 divisors (see below), whose sum is σ = 281881600. Its totient is φ = 111041280.

The previous prime is 188315033. The next prime is 188315051. The reversal of 188315049 is 940513881.

It is not a de Polignac number, because 188315049 - 2⁴ = 188315033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 188314998 and 188315016.

It is not an unprimeable number, because it can be changed into a prime (188315549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131067 + ... + 132495.

It is an arithmetic number, because the mean of its divisors is an integer number (8808800).

Almost surely, 2^188315049 is an apocalyptic number.

It is an amenable number.

188315049 is a deficient number, since it is larger than the sum of its proper divisors (93566551).

188315049 is a wasteful number, since it uses less digits than its factorization.

188315049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 188315049 is about 13722.7930466068. The cubic root of 188315049 is about 573.1852542207.

The spelling of 188315049 in words is "one hundred eighty-eight million, three hundred fifteen thousand, forty-nine".