144540274 has 8 divisors (see below), whose sum is σ = 216981468. Its totient is φ = 72213120.

The previous prime is 144540251. The next prime is 144540283. The reversal of 144540274 is 472045441.

It can be written as a sum of positive squares in 2 ways, for example, as 79334649 + 65205625 = 8907^2 + 8075^2 .

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, 25267 + ... + 30454.

Almost surely, 2^144540274 is an apocalyptic number.

144540274 is a deficient number, since it is larger than the sum of its proper divisors (72441194).

144540274 is a wasteful number, since it uses less digits than its factorization.

144540274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57020.

The product of its (nonzero) digits is 17920, while the sum is 31.

The square root of 144540274 is about 12022.4903410234. The cubic root of 144540274 is about 524.8029785278.

The spelling of 144540274 in words is "one hundred forty-four million, five hundred forty thousand, two hundred seventy-four".