1571871045 has 32 divisors (see below), whose sum is σ = 2650953600. Its totient is φ = 793131264.

The previous prime is 1571871023. The next prime is 1571871053. The reversal of 1571871045 is 5401781751.

It is not a de Polignac number, because 1571871045 - 2⁵ = 1571871013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1571870994 and 1571871012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232939 + ... + 239591.

It is an arithmetic number, because the mean of its divisors is an integer number (82842300).

Almost surely, 2^1571871045 is an apocalyptic number.

1571871045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1571871045 is a deficient number, since it is larger than the sum of its proper divisors (1079082555).

1571871045 is a wasteful number, since it uses less digits than its factorization.

1571871045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7509.

The product of its (nonzero) digits is 39200, while the sum is 39.

The square root of 1571871045 is about 39646.8289400300. The cubic root of 1571871045 is about 1162.7124014717.

The spelling of 1571871045 in words is "one billion, five hundred seventy-one million, eight hundred seventy-one thousand, forty-five".