1630745545 has 128 divisors (see below), whose sum is σ = 2554675200. Its totient is φ = 982195200.

The previous prime is 1630745533. The next prime is 1630745551. The reversal of 1630745545 is 5455470361.

It is not a de Polignac number, because 1630745545 - 2¹¹ = 1630743497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1630745498 and 1630745507.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 27639726 + ... + 27639784.

It is an arithmetic number, because the mean of its divisors is an integer number (19958400).

Almost surely, 2^1630745545 is an apocalyptic number.

It is an amenable number.

1630745545 is a deficient number, since it is larger than the sum of its proper divisors (923929655).

1630745545 is a wasteful number, since it uses less digits than its factorization.

1630745545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 1630745545 is about 40382.4905745052. The cubic root of 1630745545 is about 1177.0513241977.

The spelling of 1630745545 in words is "one billion, six hundred thirty million, seven hundred forty-five thousand, five hundred forty-five".