105213501 has 6 divisors (see below), whose sum is σ = 151975070. Its totient is φ = 70142328.

The previous prime is 105213499. The next prime is 105213529. The reversal of 105213501 is 105312501.

It can be written as a sum of positive squares in only one way, i.e., 63920025 + 41293476 = 7995^2 + 6426^2 .

It is not a de Polignac number, because 105213501 - 2¹ = 105213499 is a prime.

It is a super-2 number, since 2×105213501² = 22139761585354002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105213001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5845186 + ... + 5845203.

Almost surely, 2^105213501 is an apocalyptic number.

It is an amenable number.

105213501 is a deficient number, since it is larger than the sum of its proper divisors (46761569).

105213501 is a wasteful number, since it uses less digits than its factorization.

105213501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11690395 (or 11690392 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 105213501 is about 10257.3632576798. The cubic root of 105213501 is about 472.0889378633.

The spelling of 105213501 in words is "one hundred five million, two hundred thirteen thousand, five hundred one".