144421951 has 2 divisors, whose sum is σ = 144421952. Its totient is φ = 144421950.

The previous prime is 144421939. The next prime is 144421961. The reversal of 144421951 is 159124441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144421951 - 2¹⁵ = 144389183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144421931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72210975 + 72210976.

It is an arithmetic number, because the mean of its divisors is an integer number (72210976).

Almost surely, 2^144421951 is an apocalyptic number.

144421951 is a deficient number, since it is larger than the sum of its proper divisors (1).

144421951 is an equidigital number, since it uses as much as digits as its factorization.

144421951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The square root of 144421951 is about 12017.5684312593. The cubic root of 144421951 is about 524.6597353722.

The spelling of 144421951 in words is "one hundred forty-four million, four hundred twenty-one thousand, nine hundred fifty-one".