145749983 has 2 divisors, whose sum is σ = 145749984. Its totient is φ = 145749982.

The previous prime is 145749973. The next prime is 145750009. The reversal of 145749983 is 389947541.

It is a weak prime.

It is an emirp because it is prime and its reverse (389947541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145749983 - 2¹⁶ = 145684447 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 (145749953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72874991 + 72874992.

It is an arithmetic number, because the mean of its divisors is an integer number (72874992).

Almost surely, 2^145749983 is an apocalyptic number.

145749983 is a deficient number, since it is larger than the sum of its proper divisors (1).

145749983 is an equidigital number, since it uses as much as digits as its factorization.

145749983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 50.

The square root of 145749983 is about 12072.6957635816. The cubic root of 145749983 is about 526.2630005646.

The spelling of 145749983 in words is "one hundred forty-five million, seven hundred forty-nine thousand, nine hundred eighty-three".