1013721052 has 6 divisors (see below), whose sum is σ = 1774011848. Its totient is φ = 506860524.

The previous prime is 1013721029. The next prime is 1013721073. The reversal of 1013721052 is 2501273101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126715128 + ... + 126715135.

Almost surely, 2^1013721052 is an apocalyptic number.

It is an amenable number.

1013721052 is a deficient number, since it is larger than the sum of its proper divisors (760290796).

1013721052 is a wasteful number, since it uses less digits than its factorization.

1013721052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253430267 (or 253430265 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1013721052 is about 31838.9863532117. The cubic root of 1013721052 is about 1004.5529234289.

Adding to 1013721052 its reverse (2501273101), we get a palindrome (3514994153).

The spelling of 1013721052 in words is "one billion, thirteen million, seven hundred twenty-one thousand, fifty-two".