242207515 has 24 divisors (see below), whose sum is σ = 324760464. Its totient is φ = 173236800.

The previous prime is 242207501. The next prime is 242207521. The reversal of 242207515 is 515702242.

It is not a de Polignac number, because 242207515 - 2¹⁵ = 242174747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33624 + ... + 40186.

It is an arithmetic number, because the mean of its divisors is an integer number (13531686).

Almost surely, 2^242207515 is an apocalyptic number.

242207515 is a deficient number, since it is larger than the sum of its proper divisors (82552949).

242207515 is a wasteful number, since it uses less digits than its factorization.

242207515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6651 (or 6640 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 242207515 is about 15563.0175415952. The cubic root of 242207515 is about 623.3460397256.

Adding to 242207515 its reverse (515702242), we get a palindrome (757909757).

The spelling of 242207515 in words is "two hundred forty-two million, two hundred seven thousand, five hundred fifteen".