145916186 has 36 divisors (see below), whose sum is σ = 248820138. Its totient is φ = 63792432.

The previous prime is 145916167. The next prime is 145916201. The reversal of 145916186 is 681619541.

It can be written as a sum of positive squares in only one way, i.e., 140304025 + 5612161 = 11845^2 + 2369^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1416611 + ... + 1416713.

Almost surely, 2^145916186 is an apocalyptic number.

145916186 is a deficient number, since it is larger than the sum of its proper divisors (102903952).

145916186 is a wasteful number, since it uses less digits than its factorization.

145916186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 141 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 145916186 is about 12079.5772277013. The cubic root of 145916186 is about 526.4629623116.

The spelling of 145916186 in words is "one hundred forty-five million, nine hundred sixteen thousand, one hundred eighty-six".