65131606 has 8 divisors (see below), whose sum is σ = 97847640. Its totient is φ = 32515728.

The previous prime is 65131579. The next prime is 65131621. The reversal of 65131606 is 60613156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×65131606² = 8484252200278472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23391 + ... + 26026.

It is an arithmetic number, because the mean of its divisors is an integer number (12230955).

Almost surely, 2^65131606 is an apocalyptic number.

65131606 is a deficient number, since it is larger than the sum of its proper divisors (32716034).

65131606 is a wasteful number, since it uses less digits than its factorization.

65131606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50078.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 65131606 is about 8070.4154787718. The cubic root of 65131606 is about 402.3437527356.

The spelling of 65131606 in words is "sixty-five million, one hundred thirty-one thousand, six hundred six".