252142266 has 16 divisors (see below), whose sum is σ = 533948544. Its totient is φ = 79103424.

The previous prime is 252142259. The next prime is 252142273. The reversal of 252142266 is 662241252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (252142259) and next prime (252142273).

It is a super-2 number, since 2×252142266² = 127151444607229512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1235890 + ... + 1236093.

It is an arithmetic number, because the mean of its divisors is an integer number (33371784).

Almost surely, 2^252142266 is an apocalyptic number.

252142266 is an abundant number, since it is smaller than the sum of its proper divisors (281806278).

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

252142266 is a wasteful number, since it uses less digits than its factorization.

252142266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472005.

The product of its digits is 11520, while the sum is 30.

The square root of 252142266 is about 15878.9881919472. The cubic root of 252142266 is about 631.7548002638.

The spelling of 252142266 in words is "two hundred fifty-two million, one hundred forty-two thousand, two hundred sixty-six".