1239601 has 4 divisors (see below), whose sum is σ = 1352304. Its totient is φ = 1126900.

The previous prime is 1239599. The next prime is 1239607. The reversal of 1239601 is 1069321.

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 1239601 - 2¹ = 1239599 is a prime.

It is a super-2 number, since 2×1239601² = 3073221278402, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1239607) 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, 56335 + ... + 56356.

It is an arithmetic number, because the mean of its divisors is an integer number (338076).

2^1239601 is an apocalyptic number.

1239601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1239601 is a deficient number, since it is larger than the sum of its proper divisors (112703).

1239601 is a wasteful number, since it uses less digits than its factorization.

1239601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112702.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1239601 is about 1113.3737018629. The cubic root of 1239601 is about 107.4221827312.

The spelling of 1239601 in words is "one million, two hundred thirty-nine thousand, six hundred one".