1612135445 has 8 divisors (see below), whose sum is σ = 1937082840. Its totient is φ = 1288028160.

The previous prime is 1612135429. The next prime is 1612135463. The reversal of 1612135445 is 5445312161.

It can be written as a sum of positive squares in 4 ways, for example, as 152819044 + 1459316401 = 12362^2 + 38201^2 .

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

It is not a de Polignac number, because 1612135445 - 2⁴ = 1612135429 is a prime.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 205796 + ... + 213485.

It is an arithmetic number, because the mean of its divisors is an integer number (242135355).

Almost surely, 2^1612135445 is an apocalyptic number.

It is an amenable number.

1612135445 is a deficient number, since it is larger than the sum of its proper divisors (324947395).

1612135445 is an equidigital number, since it uses as much as digits as its factorization.

1612135445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420055.

The product of its digits is 14400, while the sum is 32.

The square root of 1612135445 is about 40151.4065133465. The cubic root of 1612135445 is about 1172.5566720046.

The spelling of 1612135445 in words is "one billion, six hundred twelve million, one hundred thirty-five thousand, four hundred forty-five".