7137442 has 8 divisors (see below), whose sum is σ = 11529756. Its totient is φ = 3294192.

The previous prime is 7137439. The next prime is 7137463. The reversal of 7137442 is 2447317.

It can be written as a sum of positive squares in 2 ways, for example, as 6155361 + 982081 = 2481^2 + 991^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 7137442.

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 3 ways as a sum of consecutive naturals, for example, 137233 + ... + 137284.

Almost surely, 2^7137442 is an apocalyptic number.

7137442 is a deficient number, since it is larger than the sum of its proper divisors (4392314).

7137442 is a wasteful number, since it uses less digits than its factorization.

7137442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274532.

The product of its digits is 4704, while the sum is 28.

The square root of 7137442 is about 2671.5991465787. The cubic root of 7137442 is about 192.5369985667.

The spelling of 7137442 in words is "seven million, one hundred thirty-seven thousand, four hundred forty-two".