145411274 has 4 divisors (see below), whose sum is σ = 218116914. Its totient is φ = 72705636.

The previous prime is 145411261. The next prime is 145411289. The reversal of 145411274 is 472114541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 472114541 = 83 ⋅5688127.

It can be written as a sum of positive squares in only one way, i.e., 144168049 + 1243225 = 12007^2 + 1115^2 .

It is a super-2 number, since 2×145411274² = 42288877212606152, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 36352817 + ... + 36352820.

Almost surely, 2^145411274 is an apocalyptic number.

145411274 is a deficient number, since it is larger than the sum of its proper divisors (72705640).

145411274 is an equidigital number, since it uses as much as digits as its factorization.

145411274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72705639.

The product of its digits is 4480, while the sum is 29.

The square root of 145411274 is about 12058.6597099346. The cubic root of 145411274 is about 525.8550227655.

The spelling of 145411274 in words is "one hundred forty-five million, four hundred eleven thousand, two hundred seventy-four".