65137242 has 32 divisors (see below), whose sum is σ = 139623552. Its totient is φ = 20205504.

The previous prime is 65137153. The next prime is 65137249. The reversal of 65137242 is 24273156.

It is not an unprimeable number, because it can be changed into a prime (65137249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1273 + ... + 11484.

It is an arithmetic number, because the mean of its divisors is an integer number (4363236).

Almost surely, 2^65137242 is an apocalyptic number.

65137242 is an abundant number, since it is smaller than the sum of its proper divisors (74486310).

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

65137242 is a wasteful number, since it uses less digits than its factorization.

65137242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12822.

The product of its digits is 10080, while the sum is 30.

The square root of 65137242 is about 8070.7646477890. The cubic root of 65137242 is about 402.3553576697.

The spelling of 65137242 in words is "sixty-five million, one hundred thirty-seven thousand, two hundred forty-two".