145274 has 8 divisors (see below), whose sum is σ = 229440. Its totient is φ = 68796.

The previous prime is 145267. The next prime is 145283. The reversal of 145274 is 472541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145274² = 42209070152, which contains 22 as substring.

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

It is a plaindrome in base 16.

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 3 ways as a sum of consecutive naturals, for example, 1874 + ... + 1949.

It is an arithmetic number, because the mean of its divisors is an integer number (28680).

2¹⁴⁵²⁷⁴ is an apocalyptic number.

145274 is a deficient number, since it is larger than the sum of its proper divisors (84166).

145274 is a wasteful number, since it uses less digits than its factorization.

145274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844.

The product of its digits is 1120, while the sum is 23.

The square root of 145274 is about 381.1482651148. The cubic root of 145274 is about 52.5689494679.

The spelling of 145274 in words is "one hundred forty-five thousand, two hundred seventy-four".