2139733 has 2 divisors, whose sum is σ = 2139734. Its totient is φ = 2139732.

The previous prime is 2139691. The next prime is 2139737. The reversal of 2139733 is 3379312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2022084 + 117649 = 1422^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 2139733 - 2¹³ = 2131541 is a prime.

It is a super-2 number, since 2×2139733² = 9156914622578, which contains 22 as substring.

2139733 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2139737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069866 + 1069867.

It is an arithmetic number, because the mean of its divisors is an integer number (1069867).

2^2139733 is an apocalyptic number.

It is an amenable number.

2139733 is a deficient number, since it is larger than the sum of its proper divisors (1).

2139733 is an equidigital number, since it uses as much as digits as its factorization.

2139733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 28.

The square root of 2139733 is about 1462.7826222648. The cubic root of 2139733 is about 128.8605146562.

The spelling of 2139733 in words is "two million, one hundred thirty-nine thousand, seven hundred thirty-three".