145412429 has 2 divisors, whose sum is σ = 145412430. Its totient is φ = 145412428.

The previous prime is 145412419. The next prime is 145412447. The reversal of 145412429 is 924214541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136352329 + 9060100 = 11677^2 + 3010^2 .

It is an emirp because it is prime and its reverse (924214541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145412429 - 2⁸ = 145412173 is a prime.

It is a super-2 number, since 2×145412429² = 42289549015360082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145412395 and 145412404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145412419) 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, 72706214 + 72706215.

It is an arithmetic number, because the mean of its divisors is an integer number (72706215).

Almost surely, 2^145412429 is an apocalyptic number.

It is an amenable number.

145412429 is a deficient number, since it is larger than the sum of its proper divisors (1).

145412429 is an equidigital number, since it uses as much as digits as its factorization.

145412429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 32.

The square root of 145412429 is about 12058.7076007340. The cubic root of 145412429 is about 525.8564150485.

The spelling of 145412429 in words is "one hundred forty-five million, four hundred twelve thousand, four hundred twenty-nine".