181007134 has 16 divisors (see below), whose sum is σ = 338507136. Its totient is φ = 70522200.

The previous prime is 181007119. The next prime is 181007149. The reversal of 181007134 is 431700181.

It is an interprime number because it is at equal distance from previous prime (181007119) and next prime (181007149).

It is a junction number, because it is equal to n+sod(n) for n = 181007099 and 181007108.

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, 587532 + ... + 587839.

It is an arithmetic number, because the mean of its divisors is an integer number (21156696).

Almost surely, 2^181007134 is an apocalyptic number.

181007134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

181007134 is a deficient number, since it is larger than the sum of its proper divisors (157500002).

181007134 is a wasteful number, since it uses less digits than its factorization.

181007134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175391.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 181007134 is about 13453.8891774832. The cubic root of 181007134 is about 565.6727142639.

The spelling of 181007134 in words is "one hundred eighty-one million, seven thousand, one hundred thirty-four".