142004617225 has 9 divisors (see below), whose sum is σ = 176088061767. Its totient is φ = 113602186440.

The previous prime is 142004617169. The next prime is 142004617229. The reversal of 142004617225 is 522716400241.

The square root of 142004617225 is 376835.

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

It can be written as a sum of positive squares in only one way, i.e., 51121662201 + 90882955024 = 226101^2 + 301468^2 .

It is not a de Polignac number, because 142004617225 - 2³³ = 133414682633 is a prime.

It is a super-2 number, since 2×142004617225² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142004617229) 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, 1846492 + ... + 1921858.

Almost surely, 2^142004617225 is an apocalyptic number.

142004617225 is the 376835-th square number.

142004617225 is the 188418-th centered octagonal number.

It is an amenable number.

142004617225 is a deficient number, since it is larger than the sum of its proper divisors (34083444542).

142004617225 is an frugal number, since it uses more digits than its factorization.

142004617225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150744 (or 75372 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 142004617225 in words is "one hundred forty-two billion, four million, six hundred seventeen thousand, two hundred twenty-five".