145390 has 32 divisors (see below), whose sum is σ = 313344. Its totient is φ = 47520.

The previous prime is 145381. The next prime is 145391. The reversal of 145390 is 93541.

It is a super-2 number, since 2×145390² = 42276504200, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145391) 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, 2137 + ... + 2203.

It is an arithmetic number, because the mean of its divisors is an integer number (9792).

2¹⁴⁵³⁹⁰ is an apocalyptic number.

145390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145390 is an abundant number, since it is smaller than the sum of its proper divisors (167954).

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

145390 is a wasteful number, since it uses less digits than its factorization.

145390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 145390 is about 381.3004065038. The cubic root of 145390 is about 52.5829376920.

It can be divided in two parts, 145 and 390, that added together give a palindrome (535).

The spelling of 145390 in words is "one hundred forty-five thousand, three hundred ninety".