242621265 has 32 divisors (see below), whose sum is σ = 399484800. Its totient is φ = 125669376.

The previous prime is 242621237. The next prime is 242621293. The reversal of 242621265 is 562126242.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (242621237) and next prime (242621293).

It is not a de Polignac number, because 242621265 - 2¹² = 242617169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123511 + ... + 125459.

It is an arithmetic number, because the mean of its divisors is an integer number (12483900).

Almost surely, 2^242621265 is an apocalyptic number.

It is an amenable number.

242621265 is a deficient number, since it is larger than the sum of its proper divisors (156863535).

242621265 is a wasteful number, since it uses less digits than its factorization.

242621265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193.

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

The square root of 242621265 is about 15576.3046002574. The cubic root of 242621265 is about 623.7007805843.

The spelling of 242621265 in words is "two hundred forty-two million, six hundred twenty-one thousand, two hundred sixty-five".