71152070 has 16 divisors (see below), whose sum is σ = 139717008. Its totient is φ = 25873440.

The previous prime is 71152069. The next prime is 71152079. The reversal of 71152070 is 7025117.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71152079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323309 + ... + 323528.

It is an arithmetic number, because the mean of its divisors is an integer number (8732313).

Almost surely, 2^71152070 is an apocalyptic number.

71152070 is a deficient number, since it is larger than the sum of its proper divisors (68564938).

71152070 is a wasteful number, since it uses less digits than its factorization.

71152070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646855.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 71152070 is about 8435.1686408749. The cubic root of 71152070 is about 414.3771951879.

Adding to 71152070 its reverse (7025117), we get a palindrome (78177187).

The spelling of 71152070 in words is "seventy-one million, one hundred fifty-two thousand, seventy".