1633606145 has 8 divisors (see below), whose sum is σ = 1967305320. Its totient is φ = 1302232960.

The previous prime is 1633606133. The next prime is 1633606147. The reversal of 1633606145 is 5416063361.

It can be written as a sum of positive squares in 4 ways, for example, as 809743936 + 823862209 = 28456^2 + 28703^2 .

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

It is not a de Polignac number, because 1633606145 - 2¹⁰ = 1633605121 is a prime.

It is a super-2 number, since 2×1633606145² = 5337338073963522050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1633606147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579950 + ... + 582759.

It is an arithmetic number, because the mean of its divisors is an integer number (245913165).

Almost surely, 2^1633606145 is an apocalyptic number.

It is an amenable number.

1633606145 is a deficient number, since it is larger than the sum of its proper divisors (333699175).

1633606145 is a wasteful number, since it uses less digits than its factorization.

1633606145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162995.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 1633606145 is about 40417.8938714030. The cubic root of 1633606145 is about 1177.7391703472.

The spelling of 1633606145 in words is "one billion, six hundred thirty-three million, six hundred six thousand, one hundred forty-five".