71194951 has 2 divisors, whose sum is σ = 71194952. Its totient is φ = 71194950.

The previous prime is 71194943. The next prime is 71194961. The reversal of 71194951 is 15949117.

It is a weak prime.

It is an emirp because it is prime and its reverse (15949117) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71194951 - 2³ = 71194943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71194951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71194931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35597475 + 35597476.

It is an arithmetic number, because the mean of its divisors is an integer number (35597476).

Almost surely, 2^71194951 is an apocalyptic number.

71194951 is a deficient number, since it is larger than the sum of its proper divisors (1).

71194951 is an equidigital number, since it uses as much as digits as its factorization.

71194951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 37.

The square root of 71194951 is about 8437.7100566445. The cubic root of 71194951 is about 414.4604222822.

The spelling of 71194951 in words is "seventy-one million, one hundred ninety-four thousand, nine hundred fifty-one".