1245828429 has 12 divisors (see below), whose sum is σ = 1861583100. Its totient is φ = 801912384.

The previous prime is 1245828383. The next prime is 1245828433. The reversal of 1245828429 is 9248285421.

1245828429 is a `hidden beast` number, since 1 + 24 + 582 + 8 + 42 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 813105225 + 432723204 = 28515^2 + 20802^2 .

It is not a de Polignac number, because 1245828429 - 2⁷ = 1245828301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245828329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2386384 + ... + 2386905.

It is an arithmetic number, because the mean of its divisors is an integer number (155131925).

Almost surely, 2^1245828429 is an apocalyptic number.

It is an amenable number.

1245828429 is a deficient number, since it is larger than the sum of its proper divisors (615754671).

1245828429 is a wasteful number, since it uses less digits than its factorization.

1245828429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773324 (or 4773321 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 1245828429 is about 35296.2948338774. The cubic root of 1245828429 is about 1076.0176925386.

The spelling of 1245828429 in words is "one billion, two hundred forty-five million, eight hundred twenty-eight thousand, four hundred twenty-nine".