194742025 has 9 divisors (see below), whose sum is σ = 241566663. Its totient is φ = 155737800.

The previous prime is 194742017. The next prime is 194742029. The reversal of 194742025 is 520247491.

The square root of 194742025 is 13955.

It is a perfect power (a square), and thus also a powerful number.

194742025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 70107129 + 124634896 = 8373^2 + 11164^2 .

It is not a de Polignac number, because 194742025 - 2³ = 194742017 is a prime.

It is a super-2 number, since 2×194742025² = 75848912602201250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194742029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 68380 + ... + 71170.

Almost surely, 2^194742025 is an apocalyptic number.

194742025 is the 13955-th square number.

194742025 is the 6978-th centered octagonal number.

It is an amenable number.

194742025 is a deficient number, since it is larger than the sum of its proper divisors (46824638).

194742025 is an frugal number, since it uses more digits than its factorization.

194742025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5592 (or 2796 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The cubic root of 194742025 is about 579.6331657770.

The spelling of 194742025 in words is "one hundred ninety-four million, seven hundred forty-two thousand, twenty-five".