65212030 has 48 divisors (see below), whose sum is σ = 129968064. Its totient is φ = 23537280.

The previous prime is 65212013. The next prime is 65212031. The reversal of 65212030 is 3021256.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 65211989 and 65212007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65212031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79020 + ... + 79840.

It is an arithmetic number, because the mean of its divisors is an integer number (2707668).

Almost surely, 2^65212030 is an apocalyptic number.

65212030 is a deficient number, since it is larger than the sum of its proper divisors (64756034).

65212030 is a wasteful number, since it uses less digits than its factorization.

65212030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 65212030 is about 8075.3965846886. The cubic root of 65212030 is about 402.5092882648.

Adding to 65212030 its reverse (3021256), we get a palindrome (68233286).

The spelling of 65212030 in words is "sixty-five million, two hundred twelve thousand, thirty".