145270 has 16 divisors (see below), whose sum is σ = 266400. Its totient is φ = 57024.

The previous prime is 145267. The next prime is 145283. The reversal of 145270 is 72541.

It is a super-2 number, since 2×145270² = 42206745800, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631 + ... + 829.

It is an arithmetic number, because the mean of its divisors is an integer number (16650).

2¹⁴⁵²⁷⁰ is an apocalyptic number.

145270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145270 is a deficient number, since it is larger than the sum of its proper divisors (121130).

145270 is a wasteful number, since it uses less digits than its factorization.

145270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 145270 is about 381.1430177768. The cubic root of 145270 is about 52.5684669825.

The spelling of 145270 in words is "one hundred forty-five thousand, two hundred seventy".