144951557 has 2 divisors, whose sum is σ = 144951558. Its totient is φ = 144951556.

The previous prime is 144951529. The next prime is 144951601. The reversal of 144951557 is 755159441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109537156 + 35414401 = 10466^2 + 5951^2 .

It is a cyclic number.

It is not a de Polignac number, because 144951557 - 2²⁰ = 143902981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144951757) by changing a digit.

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 as a sum of consecutive naturals, namely, 72475778 + 72475779.

It is an arithmetic number, because the mean of its divisors is an integer number (72475779).

Almost surely, 2^144951557 is an apocalyptic number.

It is an amenable number.

144951557 is a deficient number, since it is larger than the sum of its proper divisors (1).

144951557 is an equidigital number, since it uses as much as digits as its factorization.

144951557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 41.

The square root of 144951557 is about 12039.5829246698. The cubic root of 144951557 is about 525.3002750873.

The spelling of 144951557 in words is "one hundred forty-four million, nine hundred fifty-one thousand, five hundred fifty-seven".