1949975 has 6 divisors (see below), whose sum is σ = 2418000. Its totient is φ = 1559960.

The previous prime is 1949947. The next prime is 1949999. The reversal of 1949975 is 5799491.

It is not a de Polignac number, because 1949975 - 2⁶ = 1949911 is a prime.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 38975 + ... + 39024.

It is an arithmetic number, because the mean of its divisors is an integer number (403000).

2^1949975 is an apocalyptic number.

1949975 is a deficient number, since it is larger than the sum of its proper divisors (468025).

1949975 is an equidigital number, since it uses as much as digits as its factorization.

1949975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78009 (or 78004 counting only the distinct ones).

The product of its digits is 102060, while the sum is 44.

The square root of 1949975 is about 1396.4150529123. The cubic root of 1949975 is about 124.9327638409.

It can be divided in two parts, 1949 and 975, that multiplied together give a triangular number (1900275 = T₁₉₄₉).

The spelling of 1949975 in words is "one million, nine hundred forty-nine thousand, nine hundred seventy-five".