102011450 has 12 divisors (see below), whose sum is σ = 189741390. Its totient is φ = 40804560.

The previous prime is 102011443. The next prime is 102011461. The reversal of 102011450 is 54110201.

It can be written as a sum of positive squares in 3 ways, for example, as 97555129 + 4456321 = 9877^2 + 2111^2 .

It is a super-2 number, since 2×102011450² = 20812671862205000, which contains 22 as substring.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 1020065 + ... + 1020164.

Almost surely, 2^102011450 is an apocalyptic number.

102011450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102011450 is a deficient number, since it is larger than the sum of its proper divisors (87729940).

102011450 is a wasteful number, since it uses less digits than its factorization.

102011450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040241 (or 2040236 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 102011450 is about 10100.0717819231. The cubic root of 102011450 is about 467.2503552415.

Adding to 102011450 its reverse (54110201), we get a palindrome (156121651).

The spelling of 102011450 in words is "one hundred two million, eleven thousand, four hundred fifty".