145575390 has 32 divisors (see below), whose sum is σ = 358826400. Its totient is φ = 37770624.

The previous prime is 145575383. The next prime is 145575407. The reversal of 145575390 is 93575541.

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 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, 64465 + ... + 66684.

It is an arithmetic number, because the mean of its divisors is an integer number (11213325).

Almost surely, 2^145575390 is an apocalyptic number.

145575390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145575390 is an abundant number, since it is smaller than the sum of its proper divisors (213251010).

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

145575390 is a wasteful number, since it uses less digits than its factorization.

145575390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131196.

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 145575390 is about 12065.4626931585. The cubic root of 145575390 is about 526.0527808747.

The spelling of 145575390 in words is "one hundred forty-five million, five hundred seventy-five thousand, three hundred ninety".