1630154145 has 16 divisors (see below), whose sum is σ = 2608751232. Its totient is φ = 869247360.

The previous prime is 1630154143. The next prime is 1630154213. The reversal of 1630154145 is 5414510361.

It is a happy number.

It is not a de Polignac number, because 1630154145 - 2¹ = 1630154143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1630154143) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 131484 + ... + 143346.

It is an arithmetic number, because the mean of its divisors is an integer number (163046952).

Almost surely, 2^1630154145 is an apocalyptic number.

1630154145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1630154145 is a deficient number, since it is larger than the sum of its proper divisors (978597087).

1630154145 is a wasteful number, since it uses less digits than its factorization.

1630154145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21032.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1630154145 is about 40375.1674299934. The cubic root of 1630154145 is about 1176.9090186693.

The spelling of 1630154145 in words is "one billion, six hundred thirty million, one hundred fifty-four thousand, one hundred forty-five".