71554234 has 4 divisors (see below), whose sum is σ = 107331354. Its totient is φ = 35777116.

The previous prime is 71554211. The next prime is 71554237. The reversal of 71554234 is 43245517.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44023225 + 27531009 = 6635^2 + 5247^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71554196 and 71554205.

It is not an unprimeable number, because it can be changed into a prime (71554237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17888557 + ... + 17888560.

Almost surely, 2^71554234 is an apocalyptic number.

71554234 is a deficient number, since it is larger than the sum of its proper divisors (35777120).

71554234 is a wasteful number, since it uses less digits than its factorization.

71554234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35777119.

The product of its digits is 16800, while the sum is 31.

The square root of 71554234 is about 8458.9735783959. The cubic root of 71554234 is about 415.1564397867.

The spelling of 71554234 in words is "seventy-one million, five hundred fifty-four thousand, two hundred thirty-four".