147420194 has 4 divisors (see below), whose sum is σ = 221130294. Its totient is φ = 73710096.

The previous prime is 147420191. The next prime is 147420197. The reversal of 147420194 is 491024741.

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

It is an interprime number because it is at equal distance from previous prime (147420191) and next prime (147420197).

It can be written as a sum of positive squares in only one way, i.e., 136773025 + 10647169 = 11695^2 + 3263^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 147420194.

It is not an unprimeable number, because it can be changed into a prime (147420191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36855047 + ... + 36855050.

Almost surely, 2^147420194 is an apocalyptic number.

147420194 is a deficient number, since it is larger than the sum of its proper divisors (73710100).

147420194 is an equidigital number, since it uses as much as digits as its factorization.

147420194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73710099.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 147420194 is about 12141.6717959266. The cubic root of 147420194 is about 528.2655942061.

The spelling of 147420194 in words is "one hundred forty-seven million, four hundred twenty thousand, one hundred ninety-four".