71232901 has 4 divisors (see below), whose sum is σ = 72576972. Its totient is φ = 69888832.

The previous prime is 71232893. The next prime is 71232971. The reversal of 71232901 is 10923217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10923217 = 109 ⋅100213.

It can be written as a sum of positive squares in 2 ways, for example, as 44957025 + 26275876 = 6705^2 + 5126^2 .

It is a cyclic number.

It is not a de Polignac number, because 71232901 - 2³ = 71232893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71232971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671956 + ... + 672061.

It is an arithmetic number, because the mean of its divisors is an integer number (18144243).

Almost surely, 2^71232901 is an apocalyptic number.

It is an amenable number.

71232901 is a deficient number, since it is larger than the sum of its proper divisors (1344071).

71232901 is a wasteful number, since it uses less digits than its factorization.

71232901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344070.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 71232901 is about 8439.9585899458. The cubic root of 71232901 is about 414.5340510013.

The spelling of 71232901 in words is "seventy-one million, two hundred thirty-two thousand, nine hundred one".