145474474 has 8 divisors (see below), whose sum is σ = 231047748. Its totient is φ = 68458560.

The previous prime is 145474463. The next prime is 145474493. The reversal of 145474474 is 474474541.

145474474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 142635249 + 2839225 = 11943^2 + 1685^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2139297 + ... + 2139364.

Almost surely, 2^145474474 is an apocalyptic number.

145474474 is a deficient number, since it is larger than the sum of its proper divisors (85573274).

145474474 is a wasteful number, since it uses less digits than its factorization.

145474474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278680.

The product of its digits is 250880, while the sum is 40.

The square root of 145474474 is about 12061.2799486622. The cubic root of 145474474 is about 525.9311957308.

The spelling of 145474474 in words is "one hundred forty-five million, four hundred seventy-four thousand, four hundred seventy-four".