145423459 has 2 divisors, whose sum is σ = 145423460. Its totient is φ = 145423458.

The previous prime is 145423441. The next prime is 145423471. The reversal of 145423459 is 954324541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145423459 - 2⁵ = 145423427 is a prime.

It is a super-2 number, since 2×145423459² = 42295964855049362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145423409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72711729 + 72711730.

It is an arithmetic number, because the mean of its divisors is an integer number (72711730).

Almost surely, 2^145423459 is an apocalyptic number.

145423459 is a deficient number, since it is larger than the sum of its proper divisors (1).

145423459 is an equidigital number, since it uses as much as digits as its factorization.

145423459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 37.

The square root of 145423459 is about 12059.1649379217. The cubic root of 145423459 is about 525.8697106786.

The spelling of 145423459 in words is "one hundred forty-five million, four hundred twenty-three thousand, four hundred fifty-nine".