145252065 has 64 divisors (see below), whose sum is σ = 277364736. Its totient is φ = 63528192.

The previous prime is 145252057. The next prime is 145252067. The reversal of 145252065 is 560252541.

It is not a de Polignac number, because 145252065 - 2³ = 145252057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145252067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 238992 + ... + 239598.

It is an arithmetic number, because the mean of its divisors is an integer number (4333824).

Almost surely, 2^145252065 is an apocalyptic number.

145252065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145252065 is a deficient number, since it is larger than the sum of its proper divisors (132112671).

145252065 is a wasteful number, since it uses less digits than its factorization.

145252065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 145252065 is about 12052.0564635252. The cubic root of 145252065 is about 525.6630352999.

The spelling of 145252065 in words is "one hundred forty-five million, two hundred fifty-two thousand, sixty-five".