71245429 has 2 divisors, whose sum is σ = 71245430. Its totient is φ = 71245428.

The previous prime is 71245417. The next prime is 71245441. The reversal of 71245429 is 92454217.

It is a balanced prime because it is at equal distance from previous prime (71245417) and next prime (71245441).

It can be written as a sum of positive squares in only one way, i.e., 39062500 + 32182929 = 6250^2 + 5673^2 .

It is a cyclic number.

It is not a de Polignac number, because 71245429 - 2⁹ = 71244917 is a prime.

It is a super-2 number, since 2×71245429² = 10151822306788082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71245394 and 71245403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71245469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35622714 + 35622715.

It is an arithmetic number, because the mean of its divisors is an integer number (35622715).

Almost surely, 2^71245429 is an apocalyptic number.

It is an amenable number.

71245429 is a deficient number, since it is larger than the sum of its proper divisors (1).

71245429 is an equidigital number, since it uses as much as digits as its factorization.

71245429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 71245429 is about 8440.7007410522. The cubic root of 71245429 is about 414.5583514678.

The spelling of 71245429 in words is "seventy-one million, two hundred forty-five thousand, four hundred twenty-nine".