142206698252025 has 135 divisors (see below), whose sum is σ = 289551879283359. Its totient is φ = 68945840172000.

The previous prime is 142206698251991. The next prime is 142206698252033. The reversal of 142206698252025 is 520252896602241.

The square root of 142206698252025 is 11925045.

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

142206698252025 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 0 + 6 + 6 + 98 + 2 + 520 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51194411370729 + 91012286881296 = 7155027^2 + 9540036^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is not a de Polignac number, because 142206698252025 - 2¹³ = 142206698243833 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 5902885230 + ... + 5902909320.

Almost surely, 2^{142206698252025} is an apocalyptic number.

142206698252025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142206698252025 is the 11925045-th square number.

142206698252025 is the 5962523-rd centered octagonal number.

It is an amenable number.

142206698252025 is an abundant number, since it is smaller than the sum of its proper divisors (147345181031334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142206698252025 is an frugal number, since it uses more digits than its factorization.

142206698252025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48226 (or 24110 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 142206698252025 in words is "one hundred forty-two trillion, two hundred six billion, six hundred ninety-eight million, two hundred fifty-two thousand, twenty-five".