145078518 has 32 divisors (see below), whose sum is σ = 315415296. Its totient is φ = 44219808.

The previous prime is 145078501. The next prime is 145078567. The reversal of 145078518 is 815870541.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346 + ... + 17037.

It is an arithmetic number, because the mean of its divisors is an integer number (9856728).

Almost surely, 2^145078518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145078518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157707648).

145078518 is an abundant number, since it is smaller than the sum of its proper divisors (170336778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145078518 is a wasteful number, since it uses less digits than its factorization.

145078518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17508.

The product of its (nonzero) digits is 44800, while the sum is 39.

The square root of 145078518 is about 12044.8544200418. The cubic root of 145078518 is about 525.4535980029.

The spelling of 145078518 in words is "one hundred forty-five million, seventy-eight thousand, five hundred eighteen".