144722742 has 8 divisors (see below), whose sum is σ = 289445496. Its totient is φ = 48240912.

The previous prime is 144722737. The next prime is 144722783. The reversal of 144722742 is 247227441.

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

144722742 is an admirable number.

It is a congruent number.

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, 12060223 + ... + 12060234.

It is an arithmetic number, because the mean of its divisors is an integer number (36180687).

Almost surely, 2^144722742 is an apocalyptic number.

144722742 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.

144722742 is a wasteful number, since it uses less digits than its factorization.

144722742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24120462.

The product of its digits is 25088, while the sum is 33.

The square root of 144722742 is about 12030.0765583599. The cubic root of 144722742 is about 525.0237231910.

The spelling of 144722742 in words is "one hundred forty-four million, seven hundred twenty-two thousand, seven hundred forty-two".