144900857 has 2 divisors, whose sum is σ = 144900858. Its totient is φ = 144900856.

The previous prime is 144900829. The next prime is 144900863. The reversal of 144900857 is 758009441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127893481 + 17007376 = 11309^2 + 4124^2 .

It is a cyclic number.

It is not a de Polignac number, because 144900857 - 2⁶ = 144900793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144900857.

It is not a weakly prime, because it can be changed into another prime (144900827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72450428 + 72450429.

It is an arithmetic number, because the mean of its divisors is an integer number (72450429).

Almost surely, 2^144900857 is an apocalyptic number.

It is an amenable number.

144900857 is a deficient number, since it is larger than the sum of its proper divisors (1).

144900857 is an equidigital number, since it uses as much as digits as its factorization.

144900857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 144900857 is about 12037.4771858558. The cubic root of 144900857 is about 525.2390228312.

The spelling of 144900857 in words is "one hundred forty-four million, nine hundred thousand, eight hundred fifty-seven".