139746533 has 2 divisors, whose sum is σ = 139746534. Its totient is φ = 139746532.

The previous prime is 139746527. The next prime is 139746617. The reversal of 139746533 is 335647931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127622209 + 12124324 = 11297^2 + 3482^2 .

It is a cyclic number.

It is not a de Polignac number, because 139746533 - 2⁶ = 139746469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139746433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69873266 + 69873267.

It is an arithmetic number, because the mean of its divisors is an integer number (69873267).

Almost surely, 2^139746533 is an apocalyptic number.

It is an amenable number.

139746533 is a deficient number, since it is larger than the sum of its proper divisors (1).

139746533 is an equidigital number, since it uses as much as digits as its factorization.

139746533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 41.

The square root of 139746533 is about 11821.4437781516. The cubic root of 139746533 is about 518.9358575720.

The spelling of 139746533 in words is "one hundred thirty-nine million, seven hundred forty-six thousand, five hundred thirty-three".