2150042 has 4 divisors (see below), whose sum is σ = 3225066. Its totient is φ = 1075020.

The previous prime is 2150039. The next prime is 2150101. The reversal of 2150042 is 2400512.

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., 1540081 + 609961 = 1241^2 + 781^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2149999 and 2150026.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537509 + ... + 537512.

2^2150042 is an apocalyptic number.

2150042 is a deficient number, since it is larger than the sum of its proper divisors (1075024).

2150042 is a wasteful number, since it uses less digits than its factorization.

2150042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075023.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 2150042 is about 1466.3021516727. The cubic root of 2150042 is about 129.0671284936.

Adding to 2150042 its reverse (2400512), we get a palindrome (4550554).

The spelling of 2150042 in words is "two million, one hundred fifty thousand, forty-two".