71245403 has 2 divisors, whose sum is σ = 71245404. Its totient is φ = 71245402.

The previous prime is 71245357. The next prime is 71245417. The reversal of 71245403 is 30454217.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71245403 - 2¹⁴ = 71229019 is a prime.

It is a super-3 number, since 3×71245403³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (71245463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35622701 + 35622702.

It is an arithmetic number, because the mean of its divisors is an integer number (35622702).

Almost surely, 2^71245403 is an apocalyptic number.

71245403 is a deficient number, since it is larger than the sum of its proper divisors (1).

71245403 is an equidigital number, since it uses as much as digits as its factorization.

71245403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 71245403 is about 8440.6992008956. The cubic root of 71245403 is about 414.5583010388.

The spelling of 71245403 in words is "seventy-one million, two hundred forty-five thousand, four hundred three".