1361501 has 4 divisors (see below), whose sum is σ = 1364352. Its totient is φ = 1358652.

The previous prime is 1361497. The next prime is 1361533. The reversal of 1361501 is 1051631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1361501 - 2² = 1361497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1361501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515 + ... + 1728.

It is an arithmetic number, because the mean of its divisors is an integer number (341088).

2^1361501 is an apocalyptic number.

It is an amenable number.

1361501 is a deficient number, since it is larger than the sum of its proper divisors (2851).

1361501 is an equidigital number, since it uses as much as digits as its factorization.

1361501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1361501 is about 1166.8337499404. The cubic root of 1361501 is about 110.8339100855.

The spelling of 1361501 in words is "one million, three hundred sixty-one thousand, five hundred one".