71403150997 has 2 divisors, whose sum is σ = 71403150998. Its totient is φ = 71403150996.

The previous prime is 71403150943. The next prime is 71403151003. The reversal of 71403150997 is 79905130417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65803023441 + 5600127556 = 256521^2 + 74834^2 .

It is a cyclic number.

It is not a de Polignac number, because 71403150997 - 2²⁷ = 71268933269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71403150397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35701575498 + 35701575499.

It is an arithmetic number, because the mean of its divisors is an integer number (35701575499).

Almost surely, 2^71403150997 is an apocalyptic number.

It is an amenable number.

71403150997 is a deficient number, since it is larger than the sum of its proper divisors (1).

71403150997 is an equidigital number, since it uses as much as digits as its factorization.

71403150997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 46.

The spelling of 71403150997 in words is "seventy-one billion, four hundred three million, one hundred fifty thousand, nine hundred ninety-seven".