1361644127 has 4 divisors (see below), whose sum is σ = 1367069256. Its totient is φ = 1356219000.

The previous prime is 1361644069. The next prime is 1361644129. The reversal of 1361644127 is 7214461631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1361644127 - 2¹² = 1361640031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361644129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2712188 + ... + 2712689.

It is an arithmetic number, because the mean of its divisors is an integer number (341767314).

Almost surely, 2^1361644127 is an apocalyptic number.

1361644127 is a deficient number, since it is larger than the sum of its proper divisors (5425129).

1361644127 is an equidigital number, since it uses as much as digits as its factorization.

1361644127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5425128.

The product of its digits is 24192, while the sum is 35.

The square root of 1361644127 is about 36900.4624225768. The cubic root of 1361644127 is about 1108.3779373284.

The spelling of 1361644127 in words is "one billion, three hundred sixty-one million, six hundred forty-four thousand, one hundred twenty-seven".