181000148 has 24 divisors (see below), whose sum is σ = 362666304. Its totient is φ = 77428800.

The previous prime is 181000129. The next prime is 181000163. The reversal of 181000148 is 841000181.

It is a super-2 number, since 2×181000148² = 65522107152043808, which contains 22 as substring.

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, 10328 + ... + 21648.

It is an arithmetic number, because the mean of its divisors is an integer number (15111096).

Almost surely, 2^181000148 is an apocalyptic number.

It is an amenable number.

181000148 is an abundant number, since it is smaller than the sum of its proper divisors (181666156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

181000148 is a wasteful number, since it uses less digits than its factorization.

181000148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11903 (or 11901 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 181000148 is about 13453.6295474493. The cubic root of 181000148 is about 565.6654367599.

The spelling of 181000148 in words is "one hundred eighty-one million, one hundred forty-eight", and thus it is an aban number.