1261954 has 8 divisors (see below), whose sum is σ = 1919808. Its totient is φ = 622020.

The previous prime is 1261943. The next prime is 1261963. The reversal of 1261954 is 4591621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4302 + ... + 4585.

It is an arithmetic number, because the mean of its divisors is an integer number (239976).

2^1261954 is an apocalyptic number.

1261954 is a deficient number, since it is larger than the sum of its proper divisors (657854).

1261954 is an equidigital number, since it uses as much as digits as its factorization.

1261954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8960.

The product of its digits is 2160, while the sum is 28.

The square root of 1261954 is about 1123.3672596262. The cubic root of 1261954 is about 108.0640338143.

It can be divided in two parts, 126 and 1954, that added together give a triangular number (2080 = T₆₄).

The spelling of 1261954 in words is "one million, two hundred sixty-one thousand, nine hundred fifty-four".