1113471557 has 4 divisors (see below), whose sum is σ = 1214696256. Its totient is φ = 1012246860.

The previous prime is 1113471533. The next prime is 1113471577. The reversal of 1113471557 is 7551743111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1113471557 - 2¹⁴ = 1113455173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113471577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50612333 + ... + 50612354.

It is an arithmetic number, because the mean of its divisors is an integer number (303674064).

Almost surely, 2^1113471557 is an apocalyptic number.

It is an amenable number.

1113471557 is a deficient number, since it is larger than the sum of its proper divisors (101224699).

1113471557 is a wasteful number, since it uses less digits than its factorization.

1113471557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101224698.

The product of its digits is 14700, while the sum is 35.

The square root of 1113471557 is about 33368.7212371107. The cubic root of 1113471557 is about 1036.4770953054.

The spelling of 1113471557 in words is "one billion, one hundred thirteen million, four hundred seventy-one thousand, five hundred fifty-seven".