1572557045 has 8 divisors (see below), whose sum is σ = 1952139960. Its totient is φ = 1214664640.

The previous prime is 1572557039. The next prime is 1572557071. The reversal of 1572557045 is 5407552751.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11437924 + 1561119121 = 3382^2 + 39511^2 .

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

It is not a de Polignac number, because 1572557045 - 2⁶ = 1572556981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1572556993 and 1572557011.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5422466 + ... + 5422755.

It is an arithmetic number, because the mean of its divisors is an integer number (244017495).

Almost surely, 2^1572557045 is an apocalyptic number.

It is an amenable number.

1572557045 is a deficient number, since it is larger than the sum of its proper divisors (379582915).

1572557045 is a wasteful number, since it uses less digits than its factorization.

1572557045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10845255.

The product of its (nonzero) digits is 245000, while the sum is 41.

The square root of 1572557045 is about 39655.4793817954. The cubic root of 1572557045 is about 1162.8815215160.

The spelling of 1572557045 in words is "one billion, five hundred seventy-two million, five hundred fifty-seven thousand, forty-five".