102036561 has 8 divisors (see below), whose sum is σ = 148416864. Its totient is φ = 61840320.

The previous prime is 102036503. The next prime is 102036569. The reversal of 102036561 is 165630201.

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

It is not a de Polignac number, because 102036561 - 2⁷ = 102036433 is a prime.

It is a super-2 number, since 2×102036561² = 20822919561413442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102036569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1545976 + ... + 1546041.

It is an arithmetic number, because the mean of its divisors is an integer number (18552108).

Almost surely, 2^102036561 is an apocalyptic number.

102036561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102036561 is a deficient number, since it is larger than the sum of its proper divisors (46380303).

102036561 is a wasteful number, since it uses less digits than its factorization.

102036561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092031.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 102036561 is about 10101.3148154089. The cubic root of 102036561 is about 467.2886913337.

Adding to 102036561 its reverse (165630201), we get a palindrome (267666762).

The spelling of 102036561 in words is "one hundred two million, thirty-six thousand, five hundred sixty-one".