145744867 has 2 divisors, whose sum is σ = 145744868. Its totient is φ = 145744866.

The previous prime is 145744861. The next prime is 145744883. The reversal of 145744867 is 768447541.

It is a weak prime.

It is an emirp because it is prime and its reverse (768447541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145744867 is a prime.

It is not a weakly prime, because it can be changed into another prime (145744861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72872433 + 72872434.

It is an arithmetic number, because the mean of its divisors is an integer number (72872434).

Almost surely, 2^145744867 is an apocalyptic number.

145744867 is a deficient number, since it is larger than the sum of its proper divisors (1).

145744867 is an equidigital number, since it uses as much as digits as its factorization.

145744867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 752640, while the sum is 46.

The square root of 145744867 is about 12072.4838786391. The cubic root of 145744867 is about 526.2568430041.

It can be divided in two parts, 145744 and 867, that added together give a triangular number (146611 = T₅₄₁).

The spelling of 145744867 in words is "one hundred forty-five million, seven hundred forty-four thousand, eight hundred sixty-seven".