71501010 has 32 divisors (see below), whose sum is σ = 196117632. Its totient is φ = 16343040.

The previous prime is 71500999. The next prime is 71501011. The reversal of 71501010 is 1010517.

It is a super-2 number, since 2×71501010² = 10224788862040200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71501011) 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, 170031 + ... + 170450.

It is an arithmetic number, because the mean of its divisors is an integer number (6128676).

Almost surely, 2^71501010 is an apocalyptic number.

71501010 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71501010 is an abundant number, since it is smaller than the sum of its proper divisors (124616622).

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

71501010 is a wasteful number, since it uses less digits than its factorization.

71501010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340498.

The product of its (nonzero) digits is 35, while the sum is 15.

The square root of 71501010 is about 8455.8269849850. The cubic root of 71501010 is about 415.0534793421.

Adding to 71501010 its reverse (1010517), we get a palindrome (72511527).

The spelling of 71501010 in words is "seventy-one million, five hundred one thousand, ten".