194472029 has 4 divisors (see below), whose sum is σ = 194554140. Its totient is φ = 194389920.

The previous prime is 194472013. The next prime is 194472043. The reversal of 194472029 is 920274491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 920274491 = 691 ⋅1331801.

It can be written as a sum of positive squares in 2 ways, for example, as 55279225 + 139192804 = 7435^2 + 11798^2 .

It is a cyclic number.

It is not a de Polignac number, because 194472029 - 2⁴ = 194472013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194471983 and 194472001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194472079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37394 + ... + 42275.

It is an arithmetic number, because the mean of its divisors is an integer number (48638535).

Almost surely, 2^194472029 is an apocalyptic number.

It is an amenable number.

194472029 is a deficient number, since it is larger than the sum of its proper divisors (82111).

194472029 is an equidigital number, since it uses as much as digits as its factorization.

194472029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82110.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 194472029 is about 13945.3228359906. The cubic root of 194472029 is about 579.3651684667.

The spelling of 194472029 in words is "one hundred ninety-four million, four hundred seventy-two thousand, twenty-nine".