145712923 has 2 divisors, whose sum is σ = 145712924. Its totient is φ = 145712922.

The previous prime is 145712867. The next prime is 145712947. The reversal of 145712923 is 329217541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145712923 - 2¹³ = 145704731 is a prime.

It is not a weakly prime, because it can be changed into another prime (145712023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72856461 + 72856462.

It is an arithmetic number, because the mean of its divisors is an integer number (72856462).

Almost surely, 2^145712923 is an apocalyptic number.

145712923 is a deficient number, since it is larger than the sum of its proper divisors (1).

145712923 is an equidigital number, since it uses as much as digits as its factorization.

145712923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 145712923 is about 12071.1607975372. The cubic root of 145712923 is about 526.2183923031.

The spelling of 145712923 in words is "one hundred forty-five million, seven hundred twelve thousand, nine hundred twenty-three".