145523011 has 2 divisors, whose sum is σ = 145523012. Its totient is φ = 145523010.

The previous prime is 145522999. The next prime is 145523017. The reversal of 145523011 is 110325541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145523011 - 2¹³ = 145514819 is a prime.

It is a super-2 number, since 2×145523011² = 42353893461012242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145523017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72761505 + 72761506.

It is an arithmetic number, because the mean of its divisors is an integer number (72761506).

Almost surely, 2^145523011 is an apocalyptic number.

145523011 is a deficient number, since it is larger than the sum of its proper divisors (1).

145523011 is an equidigital number, since it uses as much as digits as its factorization.

145523011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 145523011 is about 12063.2918807430. The cubic root of 145523011 is about 525.9896808686.

Adding to 145523011 its reverse (110325541), we get a palindrome (255848552).

The spelling of 145523011 in words is "one hundred forty-five million, five hundred twenty-three thousand, eleven".