7187042 has 8 divisors (see below), whose sum is σ = 10820316. Its totient is φ = 3580272.

The previous prime is 7187027. The next prime is 7187051. The reversal of 7187042 is 2407817.

It can be written as a sum of positive squares in 2 ways, for example, as 5285401 + 1901641 = 2299^2 + 1379^2 .

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7186996 and 7187014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5933 + ... + 7040.

Almost surely, 2^7187042 is an apocalyptic number.

7187042 is a deficient number, since it is larger than the sum of its proper divisors (3633274).

7187042 is a wasteful number, since it uses less digits than its factorization.

7187042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13252.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 7187042 is about 2680.8659048897. The cubic root of 7187042 is about 192.9819665111.

The spelling of 7187042 in words is "seven million, one hundred eighty-seven thousand, forty-two".