10513642 has 4 divisors (see below), whose sum is σ = 15770466. Its totient is φ = 5256820.

The previous prime is 10513639. The next prime is 10513649. The reversal of 10513642 is 24631501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9979281 + 534361 = 3159^2 + 731^2 .

It is a super-2 number, since 2×10513642² = 221073336208328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10513649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2628409 + ... + 2628412.

Almost surely, 2^10513642 is an apocalyptic number.

10513642 is a deficient number, since it is larger than the sum of its proper divisors (5256824).

10513642 is an equidigital number, since it uses as much as digits as its factorization.

10513642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5256823.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 10513642 is about 3242.4746722218. The cubic root of 10513642 is about 219.0707499218.

The spelling of 10513642 in words is "ten million, five hundred thirteen thousand, six hundred forty-two".