1294113381 has 16 divisors (see below), whose sum is σ = 1928259648. Its totient is φ = 765180800.

The previous prime is 1294113367. The next prime is 1294113391. The reversal of 1294113381 is 1833114921.

It is a cyclic number.

It is not a de Polignac number, because 1294113381 - 2¹⁰ = 1294112357 is a prime.

It is a super-2 number, since 2×1294113381² = 3349458885766502322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1294113361) 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, 476886 + ... + 479591.

It is an arithmetic number, because the mean of its divisors is an integer number (120516228).

Almost surely, 2^1294113381 is an apocalyptic number.

1294113381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1294113381 is a deficient number, since it is larger than the sum of its proper divisors (634146267).

1294113381 is a wasteful number, since it uses less digits than its factorization.

1294113381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956532.

The product of its digits is 5184, while the sum is 33.

The square root of 1294113381 is about 35973.7874152834. The cubic root of 1294113381 is about 1089.7430533699.

The spelling of 1294113381 in words is "one billion, two hundred ninety-four million, one hundred thirteen thousand, three hundred eighty-one".