144720907 has 2 divisors, whose sum is σ = 144720908. Its totient is φ = 144720906.

The previous prime is 144720893. The next prime is 144720913. The reversal of 144720907 is 709027441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144720907 - 2²⁷ = 10503179 is a prime.

It is not a weakly prime, because it can be changed into another prime (144720937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72360453 + 72360454.

It is an arithmetic number, because the mean of its divisors is an integer number (72360454).

Almost surely, 2^144720907 is an apocalyptic number.

144720907 is a deficient number, since it is larger than the sum of its proper divisors (1).

144720907 is an equidigital number, since it uses as much as digits as its factorization.

144720907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 144720907 is about 12030.0002909393. Note that the first 3 decimals coincide. The cubic root of 144720907 is about 525.0215041834.

The spelling of 144720907 in words is "one hundred forty-four million, seven hundred twenty thousand, nine hundred seven".