3155557045 has 4 divisors (see below), whose sum is σ = 3786668460. Its totient is φ = 2524445632.

The previous prime is 3155557043. The next prime is 3155557073. The reversal of 3155557045 is 5407555513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5407555513 = 37 ⋅146150149.

It can be written as a sum of positive squares in 2 ways, for example, as 1960541284 + 1195015761 = 44278^2 + 34569^2 .

It is a cyclic number.

It is not a de Polignac number, because 3155557045 - 2¹ = 3155557043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3155556989 and 3155557007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155557043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315555700 + ... + 315555709.

It is an arithmetic number, because the mean of its divisors is an integer number (946667115).

Almost surely, 2^3155557045 is an apocalyptic number.

It is an amenable number.

3155557045 is a deficient number, since it is larger than the sum of its proper divisors (631111415).

3155557045 is an equidigital number, since it uses as much as digits as its factorization.

3155557045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631111414.

The product of its (nonzero) digits is 262500, while the sum is 40.

The square root of 3155557045 is about 56174.3450785143. The cubic root of 3155557045 is about 1466.7587190560.

The spelling of 3155557045 in words is "three billion, one hundred fifty-five million, five hundred fifty-seven thousand, forty-five".