7139933 has 2 divisors, whose sum is σ = 7139934. Its totient is φ = 7139932.

The previous prime is 7139917. The next prime is 7139939. The reversal of 7139933 is 3399317.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3892729 + 3247204 = 1973^2 + 1802^2 .

It is a cyclic number.

It is not a de Polignac number, because 7139933 - 2⁴ = 7139917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7139893 and 7139902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7139939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569966 + 3569967.

It is an arithmetic number, because the mean of its divisors is an integer number (3569967).

Almost surely, 2^7139933 is an apocalyptic number.

It is an amenable number.

7139933 is a deficient number, since it is larger than the sum of its proper divisors (1).

7139933 is an equidigital number, since it uses as much as digits as its factorization.

7139933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15309, while the sum is 35.

The square root of 7139933 is about 2672.0653060882. The cubic root of 7139933 is about 192.5593947267.

It can be divided in two parts, 71 and 39933, that added together give a palindrome (40004).

The spelling of 7139933 in words is "seven million, one hundred thirty-nine thousand, nine hundred thirty-three".