144696778 has 8 divisors (see below), whose sum is σ = 224046720. Its totient is φ = 70014540.

The previous prime is 144696709. The next prime is 144696781. The reversal of 144696778 is 877696441.

144696778 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.

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, 1166848 + ... + 1166971.

It is an arithmetic number, because the mean of its divisors is an integer number (28005840).

Almost surely, 2^144696778 is an apocalyptic number.

144696778 is a deficient number, since it is larger than the sum of its proper divisors (79349942).

144696778 is a wasteful number, since it uses less digits than its factorization.

144696778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333852.

The product of its digits is 2032128, while the sum is 52.

The square root of 144696778 is about 12028.9973813282. The cubic root of 144696778 is about 524.9923239996.

The spelling of 144696778 in words is "one hundred forty-four million, six hundred ninety-six thousand, seven hundred seventy-eight".