65106949 has 8 divisors (see below), whose sum is σ = 66481560. Its totient is φ = 63737856.

The previous prime is 65106941. The next prime is 65106959. The reversal of 65106949 is 94960156.

It can be written as a sum of positive squares in 4 ways, for example, as 28890625 + 36216324 = 5375^2 + 6018^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 65106949 - 2³ = 65106941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65106941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29517 + ... + 31645.

It is an arithmetic number, because the mean of its divisors is an integer number (8310195).

Almost surely, 2^65106949 is an apocalyptic number.

It is an amenable number.

65106949 is a deficient number, since it is larger than the sum of its proper divisors (1374611).

65106949 is a wasteful number, since it uses less digits than its factorization.

65106949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 65106949 is about 8068.8877176473. The cubic root of 65106949 is about 402.2929743057.

The spelling of 65106949 in words is "sixty-five million, one hundred six thousand, nine hundred forty-nine".