178830142 has 4 divisors (see below), whose sum is σ = 268245216. Its totient is φ = 89415070.

The previous prime is 178830131. The next prime is 178830143. The reversal of 178830142 is 241038871.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 178830098 and 178830107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (178830143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44707534 + ... + 44707537.

It is an arithmetic number, because the mean of its divisors is an integer number (67061304).

Almost surely, 2^178830142 is an apocalyptic number.

178830142 is a deficient number, since it is larger than the sum of its proper divisors (89415074).

178830142 is an equidigital number, since it uses as much as digits as its factorization.

178830142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89415073.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 178830142 is about 13372.7387621235. The cubic root of 178830142 is about 563.3957594145.

The spelling of 178830142 in words is "one hundred seventy-eight million, eight hundred thirty thousand, one hundred forty-two".