145775390 has 16 divisors (see below), whose sum is σ = 265558608. Its totient is φ = 57607296.

The previous prime is 145775389. The next prime is 145775393. The reversal of 145775390 is 93577541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145775393) 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 7 ways as a sum of consecutive naturals, for example, 86987 + ... + 88646.

It is an arithmetic number, because the mean of its divisors is an integer number (16597413).

Almost surely, 2^145775390 is an apocalyptic number.

145775390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145775390 is a deficient number, since it is larger than the sum of its proper divisors (119783218).

145775390 is a wasteful number, since it uses less digits than its factorization.

145775390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175723.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 145775390 is about 12073.7479682160. The cubic root of 145775390 is about 526.2935780118.

The spelling of 145775390 in words is "one hundred forty-five million, seven hundred seventy-five thousand, three hundred ninety".