145453523 has 2 divisors, whose sum is σ = 145453524. Its totient is φ = 145453522.

The previous prime is 145453507. The next prime is 145453543. The reversal of 145453523 is 325354541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145453523 - 2⁴ = 145453507 is a prime.

It is a super-2 number, since 2×145453523² = 42313454706223058, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145453523.

It is not a weakly prime, because it can be changed into another prime (145453543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72726761 + 72726762.

It is an arithmetic number, because the mean of its divisors is an integer number (72726762).

Almost surely, 2^145453523 is an apocalyptic number.

145453523 is a deficient number, since it is larger than the sum of its proper divisors (1).

145453523 is an equidigital number, since it uses as much as digits as its factorization.

145453523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 32.

The square root of 145453523 is about 12060.4113943099. The cubic root of 145453523 is about 525.9059465967.

The spelling of 145453523 in words is "one hundred forty-five million, four hundred fifty-three thousand, five hundred twenty-three".