71433253 has 2 divisors, whose sum is σ = 71433254. Its totient is φ = 71433252.

The previous prime is 71433227. The next prime is 71433311. The reversal of 71433253 is 35233417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64288324 + 7144929 = 8018^2 + 2673^2 .

It is a cyclic number.

It is not a de Polignac number, because 71433253 - 2⁵ = 71433221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71433223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35716626 + 35716627.

It is an arithmetic number, because the mean of its divisors is an integer number (35716627).

Almost surely, 2^71433253 is an apocalyptic number.

It is an amenable number.

71433253 is a deficient number, since it is larger than the sum of its proper divisors (1).

71433253 is an equidigital number, since it uses as much as digits as its factorization.

71433253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 28.

The square root of 71433253 is about 8451.8195082479. The cubic root of 71433253 is about 414.9223312335.

The spelling of 71433253 in words is "seventy-one million, four hundred thirty-three thousand, two hundred fifty-three".