1951149 has 16 divisors (see below), whose sum is σ = 2761920. Its totient is φ = 1223040.

The previous prime is 1951139. The next prime is 1951153. The reversal of 1951149 is 9411591.

It is not a de Polignac number, because 1951149 - 2⁴ = 1951133 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1951139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3294 + ... + 3840.

It is an arithmetic number, because the mean of its divisors is an integer number (172620).

2^1951149 is an apocalyptic number.

It is an amenable number.

1951149 is a deficient number, since it is larger than the sum of its proper divisors (810771).

1951149 is a wasteful number, since it uses less digits than its factorization.

1951149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620.

The product of its digits is 1620, while the sum is 30.

The square root of 1951149 is about 1396.8353517863. The cubic root of 1951149 is about 124.9578311092.

The spelling of 1951149 in words is "one million, nine hundred fifty-one thousand, one hundred forty-nine".