144246077 has 8 divisors (see below), whose sum is σ = 148538040. Its totient is φ = 139991040.

The previous prime is 144246073. The next prime is 144246097. The reversal of 144246077 is 770642441.

It can be written as a sum of positive squares in 4 ways, for example, as 17255716 + 126990361 = 4154^2 + 11269^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 144246077 - 2² = 144246073 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144246073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202 + ... + 17027.

It is an arithmetic number, because the mean of its divisors is an integer number (18567255).

Almost surely, 2^144246077 is an apocalyptic number.

It is an amenable number.

144246077 is a deficient number, since it is larger than the sum of its proper divisors (4291963).

144246077 is a wasteful number, since it uses less digits than its factorization.

144246077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18463.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 144246077 is about 12010.2488317270. The cubic root of 144246077 is about 524.4466756827.

The spelling of 144246077 in words is "one hundred forty-four million, two hundred forty-six thousand, seventy-seven".