145844029 has 2 divisors, whose sum is σ = 145844030. Its totient is φ = 145844028.

The previous prime is 145844021. The next prime is 145844113. The reversal of 145844029 is 920448541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81812025 + 64032004 = 9045^2 + 8002^2 .

It is a cyclic number.

It is not a de Polignac number, because 145844029 - 2³ = 145844021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145844021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72922014 + 72922015.

It is an arithmetic number, because the mean of its divisors is an integer number (72922015).

Almost surely, 2^145844029 is an apocalyptic number.

It is an amenable number.

145844029 is a deficient number, since it is larger than the sum of its proper divisors (1).

145844029 is an equidigital number, since it uses as much as digits as its factorization.

145844029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 145844029 is about 12076.5901230438. The cubic root of 145844029 is about 526.3761676190.

The spelling of 145844029 in words is "one hundred forty-five million, eight hundred forty-four thousand, twenty-nine".