145073145 has 16 divisors (see below), whose sum is σ = 265276800. Its totient is φ = 66319104.

The previous prime is 145073143. The next prime is 145073147. The reversal of 145073145 is 541370541.

It is an interprime number because it is at equal distance from previous prime (145073143) and next prime (145073147).

It is not a de Polignac number, because 145073145 - 2¹ = 145073143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145073141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690720 + ... + 690929.

It is an arithmetic number, because the mean of its divisors is an integer number (16579800).

Almost surely, 2^145073145 is an apocalyptic number.

145073145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145073145 is a deficient number, since it is larger than the sum of its proper divisors (120203655).

145073145 is a wasteful number, since it uses less digits than its factorization.

145073145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381664.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 145073145 is about 12044.6313766757. The cubic root of 145073145 is about 525.4471111775.

The spelling of 145073145 in words is "one hundred forty-five million, seventy-three thousand, one hundred forty-five".