145237723 has 2 divisors, whose sum is σ = 145237724. Its totient is φ = 145237722.

The previous prime is 145237693. The next prime is 145237747. The reversal of 145237723 is 327732541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145237723 - 2¹³ = 145229531 is a prime.

It is not a weakly prime, because it can be changed into another prime (145237123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72618861 + 72618862.

It is an arithmetic number, because the mean of its divisors is an integer number (72618862).

Almost surely, 2^145237723 is an apocalyptic number.

145237723 is a deficient number, since it is larger than the sum of its proper divisors (1).

145237723 is an equidigital number, since it uses as much as digits as its factorization.

145237723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 34.

The square root of 145237723 is about 12051.4614466462. The cubic root of 145237723 is about 525.6457336356.

The spelling of 145237723 in words is "one hundred forty-five million, two hundred thirty-seven thousand, seven hundred twenty-three".