186742051 has 12 divisors (see below), whose sum is σ = 197735952. Its totient is φ = 176332464.

The previous prime is 186742027. The next prime is 186742057. The reversal of 186742051 is 150247681.

It is not a de Polignac number, because 186742051 - 2⁵ = 186742019 is a prime.

It is a super-2 number, since 2×186742051² = 69745187223373202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 186741998 and 186742016.

It is not an unprimeable number, because it can be changed into a prime (186742057) 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 11 ways as a sum of consecutive naturals, for example, 142666 + ... + 143968.

It is an arithmetic number, because the mean of its divisors is an integer number (16477996).

Almost surely, 2^186742051 is an apocalyptic number.

186742051 is a deficient number, since it is larger than the sum of its proper divisors (10993901).

186742051 is a wasteful number, since it uses less digits than its factorization.

186742051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 186742051 is about 13665.3595269206. The cubic root of 186742051 is about 571.5848486048.

The spelling of 186742051 in words is "one hundred eighty-six million, seven hundred forty-two thousand, fifty-one".