1001213526 has 8 divisors (see below), whose sum is σ = 2002427064. Its totient is φ = 333737840.

The previous prime is 1001213519. The next prime is 1001213527. The reversal of 1001213526 is 6253121001.

It is a sphenic number, since it is the product of 3 distinct primes.

1001213526 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001213527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83434455 + ... + 83434466.

It is an arithmetic number, because the mean of its divisors is an integer number (250303383).

Almost surely, 2^1001213526 is an apocalyptic number.

1001213526 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1001213526 is a wasteful number, since it uses less digits than its factorization.

1001213526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166868926.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1001213526 is about 31641.9583148705. The cubic root of 1001213526 is about 1000.4043451496.

Adding to 1001213526 its reverse (6253121001), we get a palindrome (7254334527).

The spelling of 1001213526 in words is "one billion, one million, two hundred thirteen thousand, five hundred twenty-six".