71254150 has 24 divisors (see below), whose sum is σ = 144582264. Its totient is φ = 25910400.

The previous prime is 71254121. The next prime is 71254159. The reversal of 71254150 is 5145217.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71254159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64227 + ... + 65326.

It is an arithmetic number, because the mean of its divisors is an integer number (6024261).

Almost surely, 2^71254150 is an apocalyptic number.

71254150 is an abundant number, since it is smaller than the sum of its proper divisors (73328114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71254150 is a wasteful number, since it uses less digits than its factorization.

71254150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129576 (or 129571 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 71254150 is about 8441.2173292719. The cubic root of 71254150 is about 414.5752658436.

Adding to 71254150 its reverse (5145217), we get a palindrome (76399367).

The spelling of 71254150 in words is "seventy-one million, two hundred fifty-four thousand, one hundred fifty".