145942481 has 2 divisors, whose sum is σ = 145942482. Its totient is φ = 145942480.

The previous prime is 145942457. The next prime is 145942483. The reversal of 145942481 is 184249541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76720081 + 69222400 = 8759^2 + 8320^2 .

It is a cyclic number.

It is not a de Polignac number, because 145942481 - 2¹⁴ = 145926097 is a prime.

It is a super-2 number, since 2×145942481² = 42598415520870722, which contains 22 as substring.

Together with 145942483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145942483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72971240 + 72971241.

It is an arithmetic number, because the mean of its divisors is an integer number (72971241).

Almost surely, 2^145942481 is an apocalyptic number.

It is an amenable number.

145942481 is a deficient number, since it is larger than the sum of its proper divisors (1).

145942481 is an equidigital number, since it uses as much as digits as its factorization.

145942481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 38.

The square root of 145942481 is about 12080.6655859683. The cubic root of 145942481 is about 526.4945843738.

It can be divided in two parts, 14 and 5942481, that added together give a palindrome (5942495).

The spelling of 145942481 in words is "one hundred forty-five million, nine hundred forty-two thousand, four hundred eighty-one".