1630315445 has 8 divisors (see below), whose sum is σ = 2134231200. Its totient is φ = 1185683920.

The previous prime is 1630315433. The next prime is 1630315471. The reversal of 1630315445 is 5445130361.

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

It is not a de Polignac number, because 1630315445 - 2⁴ = 1630315429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14820995 + ... + 14821104.

It is an arithmetic number, because the mean of its divisors is an integer number (266778900).

Almost surely, 2^1630315445 is an apocalyptic number.

It is an amenable number.

1630315445 is a deficient number, since it is larger than the sum of its proper divisors (503915755).

1630315445 is a wasteful number, since it uses less digits than its factorization.

1630315445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29642115.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1630315445 is about 40377.1648955198. The cubic root of 1630315445 is about 1176.9478348685.

The spelling of 1630315445 in words is "one billion, six hundred thirty million, three hundred fifteen thousand, four hundred forty-five".