1333801381 has 16 divisors (see below), whose sum is σ = 1538643456. Its totient is φ = 1144800000.

The previous prime is 1333801333. The next prime is 1333801409. The reversal of 1333801381 is 1831083331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1333801381 - 2¹¹ = 1333799333 is a prime.

It is a super-2 number, since 2×1333801381² = 3558052247915014322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1333831381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33720 + ... + 61681.

It is an arithmetic number, because the mean of its divisors is an integer number (96165216).

Almost surely, 2^1333801381 is an apocalyptic number.

1333801381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1333801381 is a deficient number, since it is larger than the sum of its proper divisors (204842075).

1333801381 is a wasteful number, since it uses less digits than its factorization.

1333801381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95484.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1333801381 is about 36521.2456112877. The cubic root of 1333801381 is about 1100.7711895101.

The spelling of 1333801381 in words is "one billion, three hundred thirty-three million, eight hundred one thousand, three hundred eighty-one".