65090140 has 24 divisors (see below), whose sum is σ = 137147472. Its totient is φ = 25948800.

The previous prime is 65090131. The next prime is 65090149. The reversal of 65090140 is 4109056.

65090140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (65090131) and next prime (65090149).

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65090149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840 + ... + 11440.

It is an arithmetic number, because the mean of its divisors is an integer number (5714478).

Almost surely, 2^65090140 is an apocalyptic number.

It is an amenable number.

65090140 is an abundant number, since it is smaller than the sum of its proper divisors (72057332).

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

65090140 is a wasteful number, since it uses less digits than its factorization.

65090140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10917 (or 10915 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 65090140 is about 8067.8460570341. The cubic root of 65090140 is about 402.2583506353.

Adding to 65090140 its reverse (4109056), we get a palindrome (69199196).

The spelling of 65090140 in words is "sixty-five million, ninety thousand, one hundred forty".