71940053 has 2 divisors, whose sum is σ = 71940054. Its totient is φ = 71940052.

The previous prime is 71940047. The next prime is 71940101. The reversal of 71940053 is 35004917.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36024004 + 35916049 = 6002^2 + 5993^2 .

It is a cyclic number.

It is not a de Polignac number, because 71940053 - 2⁸ = 71939797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71939998 and 71940025.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71940013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35970026 + 35970027.

It is an arithmetic number, because the mean of its divisors is an integer number (35970027).

Almost surely, 2^71940053 is an apocalyptic number.

It is an amenable number.

71940053 is a deficient number, since it is larger than the sum of its proper divisors (1).

71940053 is an equidigital number, since it uses as much as digits as its factorization.

71940053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 71940053 is about 8481.7482278125. The cubic root of 71940053 is about 415.9012744180.

The spelling of 71940053 in words is "seventy-one million, nine hundred forty thousand, fifty-three".