145770623 has 2 divisors, whose sum is σ = 145770624. Its totient is φ = 145770622.

The previous prime is 145770613. The next prime is 145770671. The reversal of 145770623 is 326077541.

It is a weak prime.

It is an emirp because it is prime and its reverse (326077541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145770623 - 2¹⁰ = 145769599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145770613) 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, 72885311 + 72885312.

It is an arithmetic number, because the mean of its divisors is an integer number (72885312).

Almost surely, 2^145770623 is an apocalyptic number.

145770623 is a deficient number, since it is larger than the sum of its proper divisors (1).

145770623 is an equidigital number, since it uses as much as digits as its factorization.

145770623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 145770623 is about 12073.5505548285. The cubic root of 145770623 is about 526.2878411750.

The spelling of 145770623 in words is "one hundred forty-five million, seven hundred seventy thousand, six hundred twenty-three".