7138948 has 6 divisors (see below), whose sum is σ = 12493166. Its totient is φ = 3569472.

The previous prime is 7138931. The next prime is 7138949. The reversal of 7138948 is 8498317.

It can be written as a sum of positive squares in only one way, i.e., 7064964 + 73984 = 2658^2 + 272^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7138948.

It is not an unprimeable number, because it can be changed into a prime (7138949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 892365 + ... + 892372.

Almost surely, 2^7138948 is an apocalyptic number.

It is an amenable number.

7138948 is a deficient number, since it is larger than the sum of its proper divisors (5354218).

7138948 is a wasteful number, since it uses less digits than its factorization.

7138948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784741 (or 1784739 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 7138948 is about 2671.8809853734. The cubic root of 7138948 is about 192.5505393809.

The spelling of 7138948 in words is "seven million, one hundred thirty-eight thousand, nine hundred forty-eight".