65732157 has 6 divisors (see below), whose sum is σ = 94946462. Its totient is φ = 43821432.

The previous prime is 65732129. The next prime is 65732167. The reversal of 65732157 is 75123756.

It can be written as a sum of positive squares in only one way, i.e., 52620516 + 13111641 = 7254^2 + 3621^2 .

It is not a de Polignac number, because 65732157 - 2¹⁶ = 65666621 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 (65732167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3651778 + ... + 3651795.

Almost surely, 2^65732157 is an apocalyptic number.

It is an amenable number.

65732157 is a deficient number, since it is larger than the sum of its proper divisors (29214305).

65732157 is a wasteful number, since it uses less digits than its factorization.

65732157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7303579 (or 7303576 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 65732157 is about 8107.5370489440. The cubic root of 65732157 is about 403.5765851968.

The spelling of 65732157 in words is "sixty-five million, seven hundred thirty-two thousand, one hundred fifty-seven".