71578150 has 24 divisors (see below), whose sum is σ = 152155440. Its totient is φ = 24540960.

The previous prime is 71578147. The next prime is 71578201. The reversal of 71578150 is 5187517.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101905 + ... + 102604.

It is an arithmetic number, because the mean of its divisors is an integer number (6339810).

Almost surely, 2^71578150 is an apocalyptic number.

71578150 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71578150 is an abundant number, since it is smaller than the sum of its proper divisors (80577290).

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

71578150 is a wasteful number, since it uses less digits than its factorization.

71578150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204528 (or 204523 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 34.

The square root of 71578150 is about 8460.3871069828. The cubic root of 71578150 is about 415.2026880419.

The spelling of 71578150 in words is "seventy-one million, five hundred seventy-eight thousand, one hundred fifty".