1235961 has 12 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 818520.

The previous prime is 1235947. The next prime is 1235977. The reversal of 1235961 is 1695321.

It is not a de Polignac number, because 1235961 - 2⁵ = 1235929 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1235981) 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, 1360 + ... + 2078.

It is an arithmetic number, because the mean of its divisors is an integer number (149760).

2^1235961 is an apocalyptic number.

It is an amenable number.

1235961 is a deficient number, since it is larger than the sum of its proper divisors (561159).

1235961 is a wasteful number, since it uses less digits than its factorization.

1235961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 913 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 1235961 is about 1111.7378288068. The cubic root of 1235961 is about 107.3169337838.

It can be divided in two parts, 123 and 5961, that added together give a square (6084 = 78²).

The spelling of 1235961 in words is "one million, two hundred thirty-five thousand, nine hundred sixty-one".