181252054 has 4 divisors (see below), whose sum is σ = 271878084. Its totient is φ = 90626026.

The previous prime is 181252051. The next prime is 181252061. The reversal of 181252054 is 450252181.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181252051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45313012 + ... + 45313015.

It is an arithmetic number, because the mean of its divisors is an integer number (67969521).

Almost surely, 2^181252054 is an apocalyptic number.

181252054 is a deficient number, since it is larger than the sum of its proper divisors (90626030).

181252054 is an equidigital number, since it uses as much as digits as its factorization.

181252054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90626029.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 181252054 is about 13462.9883012651. The cubic root of 181252054 is about 565.9277357411.

The spelling of 181252054 in words is "one hundred eighty-one million, two hundred fifty-two thousand, fifty-four".