71533070 has 32 divisors (see below), whose sum is σ = 147557376. Its totient is φ = 24458400.

The previous prime is 71533057. The next prime is 71533073. The reversal of 71533070 is 7033517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71533073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28985 + ... + 31355.

It is an arithmetic number, because the mean of its divisors is an integer number (4611168).

Almost surely, 2^71533070 is an apocalyptic number.

71533070 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71533070 is an abundant number, since it is smaller than the sum of its proper divisors (76024306).

71533070 is a wasteful number, since it uses less digits than its factorization.

71533070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816.

The product of its (nonzero) digits is 2205, while the sum is 26.

The square root of 71533070 is about 8457.7225066799. The cubic root of 71533070 is about 415.1155046954.

Adding to 71533070 its reverse (7033517), we get a palindrome (78566587).

The spelling of 71533070 in words is "seventy-one million, five hundred thirty-three thousand, seventy".