65031145 has 8 divisors (see below), whose sum is σ = 78136704. Its totient is φ = 51958704.

The previous prime is 65031133. The next prime is 65031181. The reversal of 65031145 is 54113056.

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 65031145 - 2⁷ = 65031017 is a prime.

It is a super-2 number, since 2×65031145² = 8458099640022050, which contains 22 as substring.

It is a Duffinian 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, 3729 + ... + 11998.

It is an arithmetic number, because the mean of its divisors is an integer number (9767088).

Almost surely, 2^65031145 is an apocalyptic number.

It is an amenable number.

65031145 is a deficient number, since it is larger than the sum of its proper divisors (13105559).

65031145 is a wasteful number, since it uses less digits than its factorization.

65031145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16559.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 65031145 is about 8064.1890478832. The cubic root of 65031145 is about 402.1367838119.

The spelling of 65031145 in words is "sixty-five million, thirty-one thousand, one hundred forty-five".