102030550 has 48 divisors (see below), whose sum is σ = 197424864. Its totient is φ = 39200000.

The previous prime is 102030541. The next prime is 102030559. The reversal of 102030550 is 55030201.

It is an interprime number because it is at equal distance from previous prime (102030541) and next prime (102030559).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145200 + ... + 145900.

It is an arithmetic number, because the mean of its divisors is an integer number (4113018).

Almost surely, 2^102030550 is an apocalyptic number.

102030550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102030550 is a deficient number, since it is larger than the sum of its proper divisors (95394314).

102030550 is a wasteful number, since it uses less digits than its factorization.

102030550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 102030550 is about 10101.0172755025. The cubic root of 102030550 is about 467.2795151213.

Adding to 102030550 its reverse (55030201), we get a palindrome (157060751).

The spelling of 102030550 in words is "one hundred two million, thirty thousand, five hundred fifty".