65129045 has 8 divisors (see below), whose sum is σ = 78480600. Its totient is φ = 51886080.

The previous prime is 65129039. The next prime is 65129059. The reversal of 65129045 is 54092156.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32341969 + 32787076 = 5687^2 + 5726^2 .

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

It is not a de Polignac number, because 65129045 - 2¹⁴ = 65112661 is a prime.

It is a super-2 number, since 2×65129045² = 8483585005224050, 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 7 ways as a sum of consecutive naturals, for example, 25820 + ... + 28229.

It is an arithmetic number, because the mean of its divisors is an integer number (9810075).

Almost surely, 2^65129045 is an apocalyptic number.

It is an amenable number.

65129045 is a deficient number, since it is larger than the sum of its proper divisors (13351555).

65129045 is a wasteful number, since it uses less digits than its factorization.

65129045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54295.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 65129045 is about 8070.2568112793. The cubic root of 65129045 is about 402.3384792290.

The spelling of 65129045 in words is "sixty-five million, one hundred twenty-nine thousand, forty-five".