1645036093 has 16 divisors (see below), whose sum is σ = 1858619520. Its totient is φ = 1446667776.

The previous prime is 1645036073. The next prime is 1645036097. The reversal of 1645036093 is 3906305461.

It is a cyclic number.

It is not a de Polignac number, because 1645036093 - 2¹⁷ = 1644905021 is a prime.

It is a super-2 number, since 2×1645036093² = 5412287494545409298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1645036097) 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, 11305 + ... + 58462.

It is an arithmetic number, because the mean of its divisors is an integer number (116163720).

Almost surely, 2^1645036093 is an apocalyptic number.

It is an amenable number.

1645036093 is a deficient number, since it is larger than the sum of its proper divisors (213583427).

1645036093 is a wasteful number, since it uses less digits than its factorization.

1645036093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69876.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 1645036093 is about 40559.0445277006. The cubic root of 1645036093 is about 1180.4795745281.

The spelling of 1645036093 in words is "one billion, six hundred forty-five million, thirty-six thousand, ninety-three".