1635146242 has 8 divisors (see below), whose sum is σ = 2459998476. Its totient is φ = 815146752.

The previous prime is 1635146221. The next prime is 1635146269. The reversal of 1635146242 is 2426415361.

It can be written as a sum of positive squares in 2 ways, for example, as 1404075841 + 231070401 = 37471^2 + 15201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1635146198 and 1635146207.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1212343 + ... + 1213690.

Almost surely, 2^1635146242 is an apocalyptic number.

1635146242 is a deficient number, since it is larger than the sum of its proper divisors (824852234).

1635146242 is a wasteful number, since it uses less digits than its factorization.

1635146242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426372.

The product of its digits is 34560, while the sum is 34.

The square root of 1635146242 is about 40436.9415510125. The cubic root of 1635146242 is about 1178.1091621931.

The spelling of 1635146242 in words is "one billion, six hundred thirty-five million, one hundred forty-six thousand, two hundred forty-two".