1361356371 has 12 divisors (see below), whose sum is σ = 1988499240. Its totient is φ = 897372960.

The previous prime is 1361356369. The next prime is 1361356387. The reversal of 1361356371 is 1736531631.

It is a happy number.

1361356371 is a `hidden beast` number, since 1 + 3 + 6 + 13 + 5 + 637 + 1 = 666.

It is not a de Polignac number, because 1361356371 - 2¹ = 1361356369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1361356571) 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 11 ways as a sum of consecutive naturals, for example, 848985 + ... + 850586.

It is an arithmetic number, because the mean of its divisors is an integer number (165708270).

Almost surely, 2^1361356371 is an apocalyptic number.

1361356371 is a deficient number, since it is larger than the sum of its proper divisors (627142869).

1361356371 is a wasteful number, since it uses less digits than its factorization.

1361356371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699666 (or 1699663 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 1361356371 is about 36896.5631326279. The cubic root of 1361356371 is about 1108.2998540600.

The spelling of 1361356371 in words is "one billion, three hundred sixty-one million, three hundred fifty-six thousand, three hundred seventy-one".