1356741381 has 32 divisors (see below), whose sum is σ = 1893203968. Its totient is φ = 863291520.

The previous prime is 1356741367. The next prime is 1356741391. The reversal of 1356741381 is 1831476531.

It is not a de Polignac number, because 1356741381 - 2¹¹ = 1356739333 is a prime.

It is a super-2 number, since 2×1356741381² = 3681494349835574322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356741311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3696660 + ... + 3697026.

It is an arithmetic number, because the mean of its divisors is an integer number (59162624).

Almost surely, 2^1356741381 is an apocalyptic number.

It is an amenable number.

1356741381 is a deficient number, since it is larger than the sum of its proper divisors (536462587).

1356741381 is a wasteful number, since it uses less digits than its factorization.

1356741381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841.

The product of its digits is 60480, while the sum is 39.

The square root of 1356741381 is about 36833.9704756357. The cubic root of 1356741381 is about 1107.0460595680.

The spelling of 1356741381 in words is "one billion, three hundred fifty-six million, seven hundred forty-one thousand, three hundred eighty-one".