1011386481 has 16 divisors (see below), whose sum is σ = 1545055104. Its totient is φ = 576474624.

The previous prime is 1011386479. The next prime is 1011386489. The reversal of 1011386481 is 1846831101.

It is a happy number.

It is not a de Polignac number, because 1011386481 - 2¹ = 1011386479 is a prime.

It is a super-2 number, since 2×1011386481² = 2045805227899126722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1011386489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52320 + ... + 68993.

It is an arithmetic number, because the mean of its divisors is an integer number (96565944).

Almost surely, 2^1011386481 is an apocalyptic number.

It is an amenable number.

1011386481 is a deficient number, since it is larger than the sum of its proper divisors (533668623).

1011386481 is a wasteful number, since it uses less digits than its factorization.

1011386481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121720.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 1011386481 is about 31802.3030769786. The cubic root of 1011386481 is about 1003.7811783368.

The spelling of 1011386481 in words is "one billion, eleven million, three hundred eighty-six thousand, four hundred eighty-one".