144857706 has 16 divisors (see below), whose sum is σ = 331103424. Its totient is φ = 41387904.

The previous prime is 144857693. The next prime is 144857711. The reversal of 144857706 is 607758441.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 3448993 = 144857706 / (1 + 4 + 4 + 8 + 5 + 7 + 7 + 0 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1724455 + ... + 1724538.

It is an arithmetic number, because the mean of its divisors is an integer number (20693964).

Almost surely, 2^144857706 is an apocalyptic number.

144857706 is an abundant number, since it is smaller than the sum of its proper divisors (186245718).

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

144857706 is a wasteful number, since it uses less digits than its factorization.

144857706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449005.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 144857706 is about 12035.6846917822. The cubic root of 144857706 is about 525.1868795020.

The spelling of 144857706 in words is "one hundred forty-four million, eight hundred fifty-seven thousand, seven hundred six".