1361633 has 12 divisors (see below), whose sum is σ = 1686528. Its totient is φ = 1076400.

The previous prime is 1361629. The next prime is 1361677. The reversal of 1361633 is 3361631.

It is not a de Polignac number, because 1361633 - 2² = 1361629 is a prime.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1361599 and 1361608.

It is not an unprimeable number, because it can be changed into a prime (1361603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 608 + ... + 1758.

It is an arithmetic number, because the mean of its divisors is an integer number (140544).

2^1361633 is an apocalyptic number.

1361633 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1361633 is a deficient number, since it is larger than the sum of its proper divisors (324895).

1361633 is a wasteful number, since it uses less digits than its factorization.

1361633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184 (or 1171 counting only the distinct ones).

The product of its digits is 972, while the sum is 23.

The square root of 1361633 is about 1166.8903118974. The cubic root of 1361633 is about 110.8374918195.

The spelling of 1361633 in words is "one million, three hundred sixty-one thousand, six hundred thirty-three".