194149425 has 24 divisors (see below), whose sum is σ = 321445696. Its totient is φ = 103400640.

The previous prime is 194149411. The next prime is 194149447. The reversal of 194149425 is 524941491.

194149425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 194149425 - 2⁴ = 194149409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71187 + ... + 73863.

Almost surely, 2^194149425 is an apocalyptic number.

194149425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

194149425 is a deficient number, since it is larger than the sum of its proper divisors (127296271).

194149425 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (194149424) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (3657).

194149425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657 (or 3652 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 194149425 is about 13933.7512895846. The cubic root of 194149425 is about 579.0446271394.

The spelling of 194149425 in words is "one hundred ninety-four million, one hundred forty-nine thousand, four hundred twenty-five".