3155225645 has 24 divisors (see below), whose sum is σ = 4481915928. Its totient is φ = 2118188160.

The previous prime is 3155225611. The next prime is 3155225651. The reversal of 3155225645 is 5465225513.

It can be written as a sum of positive squares in 4 ways, for example, as 684240964 + 2470984681 = 26158^2 + 49709^2 .

It is not a de Polignac number, because 3155225645 - 2²² = 3151031341 is a prime.

It is a super-3 number, since 3×3155225645³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3155225599 and 3155225608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192722 + ... + 208451.

It is an arithmetic number, because the mean of its divisors is an integer number (186746497).

Almost surely, 2^3155225645 is an apocalyptic number.

It is an amenable number.

3155225645 is a deficient number, since it is larger than the sum of its proper divisors (1326690283).

3155225645 is a wasteful number, since it uses less digits than its factorization.

3155225645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401213 (or 401202 counting only the distinct ones).

The product of its digits is 180000, while the sum is 38.

The square root of 3155225645 is about 56171.3952559486. The cubic root of 3155225645 is about 1466.7073703981.

The spelling of 3155225645 in words is "three billion, one hundred fifty-five million, two hundred twenty-five thousand, six hundred forty-five".