71151390 has 48 divisors (see below), whose sum is σ = 194734800. Its totient is φ = 17974656.

The previous prime is 71151389. The next prime is 71151403. The reversal of 71151390 is 9315117.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19095 + ... + 22514.

It is an arithmetic number, because the mean of its divisors is an integer number (4056975).

Almost surely, 2^71151390 is an apocalyptic number.

71151390 is an abundant number, since it is smaller than the sum of its proper divisors (123583410).

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

71151390 is a wasteful number, since it uses less digits than its factorization.

71151390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41641 (or 41638 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 27.

The square root of 71151390 is about 8435.1283333450. The cubic root of 71151390 is about 414.3758751167.

The spelling of 71151390 in words is "seventy-one million, one hundred fifty-one thousand, three hundred ninety".