181425104 has 40 divisors (see below), whose sum is σ = 419199360. Its totient is φ = 74371968.

The previous prime is 181425089. The next prime is 181425119. The reversal of 181425104 is 401524181.

It is an interprime number because it is at equal distance from previous prime (181425089) and next prime (181425119).

It is a super-2 number, since 2×181425104² = 65830136722821632, 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, 32639 + ... + 37790.

It is an arithmetic number, because the mean of its divisors is an integer number (10479984).

Almost surely, 2^181425104 is an apocalyptic number.

181425104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

181425104 is an abundant number, since it is smaller than the sum of its proper divisors (237774256).

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

181425104 is a wasteful number, since it uses less digits than its factorization.

181425104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70467 (or 70461 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 181425104 is about 13469.4136472231. The cubic root of 181425104 is about 566.1077845399.

Adding to 181425104 its reverse (401524181), we get a palindrome (582949285).

The spelling of 181425104 in words is "one hundred eighty-one million, four hundred twenty-five thousand, one hundred four".