1013571849 has 4 divisors (see below), whose sum is σ = 1351429136. Its totient is φ = 675714564.

The previous prime is 1013571827. The next prime is 1013571857. The reversal of 1013571849 is 9481753101.

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 not a de Polignac number, because 1013571849 - 2¹³ = 1013563657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013571899) 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, 168928639 + ... + 168928644.

It is an arithmetic number, because the mean of its divisors is an integer number (337857284).

Almost surely, 2^1013571849 is an apocalyptic number.

It is an amenable number.

1013571849 is a deficient number, since it is larger than the sum of its proper divisors (337857287).

1013571849 is an equidigital number, since it uses as much as digits as its factorization.

1013571849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337857286.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 1013571849 is about 31836.6431804611. The cubic root of 1013571849 is about 1004.5036364765.

The spelling of 1013571849 in words is "one billion, thirteen million, five hundred seventy-one thousand, eight hundred forty-nine".