145122941 has 2 divisors, whose sum is σ = 145122942. Its totient is φ = 145122940.

The previous prime is 145122937. The next prime is 145123019. The reversal of 145122941 is 149221541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78765625 + 66357316 = 8875^2 + 8146^2 .

It is a cyclic number.

It is not a de Polignac number, because 145122941 - 2² = 145122937 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145122911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72561470 + 72561471.

It is an arithmetic number, because the mean of its divisors is an integer number (72561471).

Almost surely, 2^145122941 is an apocalyptic number.

It is an amenable number.

145122941 is a deficient number, since it is larger than the sum of its proper divisors (1).

145122941 is an equidigital number, since it uses as much as digits as its factorization.

145122941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 145122941 is about 12046.6983443598. The cubic root of 145122941 is about 525.5072237761.

The spelling of 145122941 in words is "one hundred forty-five million, one hundred twenty-two thousand, nine hundred forty-one".