1445135129 has 2 divisors, whose sum is σ = 1445135130. Its totient is φ = 1445135128.

The previous prime is 1445135119. The next prime is 1445135137. The reversal of 1445135129 is 9215315441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1426195225 + 18939904 = 37765^2 + 4352^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445135129 - 2⁴ = 1445135113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1445135119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722567564 + 722567565.

It is an arithmetic number, because the mean of its divisors is an integer number (722567565).

Almost surely, 2^1445135129 is an apocalyptic number.

It is an amenable number.

1445135129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445135129 is an equidigital number, since it uses as much as digits as its factorization.

1445135129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 35.

The square root of 1445135129 is about 38014.9329737670. The cubic root of 1445135129 is about 1130.5839592717.

The spelling of 1445135129 in words is "one billion, four hundred forty-five million, one hundred thirty-five thousand, one hundred twenty-nine".