2129954 has 4 divisors (see below), whose sum is σ = 3194934. Its totient is φ = 1064976.

The previous prime is 2129951. The next prime is 2129971. The reversal of 2129954 is 4599212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 452929 = 1295^2 + 673^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2129954.

It is not an unprimeable number, because it can be changed into a prime (2129951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532487 + ... + 532490.

2^2129954 is an apocalyptic number.

2129954 is a deficient number, since it is larger than the sum of its proper divisors (1064980).

2129954 is a wasteful number, since it uses less digits than its factorization.

2129954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064979.

The product of its digits is 6480, while the sum is 32.

The square root of 2129954 is about 1459.4361925072. The cubic root of 2129954 is about 128.6639088900.

The spelling of 2129954 in words is "two million, one hundred twenty-nine thousand, nine hundred fifty-four".