451145129 has 2 divisors, whose sum is σ = 451145130. Its totient is φ = 451145128.

The previous prime is 451145119. The next prime is 451145131. The reversal of 451145129 is 921541154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 441210025 + 9935104 = 21005^2 + 3152^2 .

It is a cyclic number.

It is not a de Polignac number, because 451145129 - 2⁴ = 451145113 is a prime.

Together with 451145131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 451145095 and 451145104.

It is not a weakly prime, because it can be changed into another prime (451145119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225572564 + 225572565.

It is an arithmetic number, because the mean of its divisors is an integer number (225572565).

Almost surely, 2^451145129 is an apocalyptic number.

It is an amenable number.

451145129 is a deficient number, since it is larger than the sum of its proper divisors (1).

451145129 is an equidigital number, since it uses as much as digits as its factorization.

451145129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 32.

The square root of 451145129 is about 21240.1772356071. The cubic root of 451145129 is about 766.9588989499.

The spelling of 451145129 in words is "four hundred fifty-one million, one hundred forty-five thousand, one hundred twenty-nine".