145304274 has 8 divisors (see below), whose sum is σ = 290608560. Its totient is φ = 48434756.

The previous prime is 145304273. The next prime is 145304293. The reversal of 145304274 is 472403541.

145304274 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

145304274 is an admirable number.

It is a super-2 number, since 2×145304274² = 42226664085334152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145304273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12108684 + ... + 12108695.

It is an arithmetic number, because the mean of its divisors is an integer number (36326070).

Almost surely, 2^145304274 is an apocalyptic number.

145304274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145304274 is a wasteful number, since it uses less digits than its factorization.

145304274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24217384.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 145304274 is about 12054.2222478267. Note that the first 4 decimals coincide. The cubic root of 145304274 is about 525.7260087108.

The spelling of 145304274 in words is "one hundred forty-five million, three hundred four thousand, two hundred seventy-four".