102551530 has 16 divisors (see below), whose sum is σ = 184709160. Its totient is φ = 40994752.

The previous prime is 102551521. The next prime is 102551539. The reversal of 102551530 is 35155201.

It is an interprime number because it is at equal distance from previous prime (102551521) and next prime (102551539).

It can be written as a sum of positive squares in 4 ways, for example, as 96805921 + 5745609 = 9839^2 + 2397^2 .

It is not an unprimeable number, because it can be changed into a prime (102551539) 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, 26052 + ... + 29728.

Almost surely, 2^102551530 is an apocalyptic number.

102551530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102551530 is a deficient number, since it is larger than the sum of its proper divisors (82157630).

102551530 is a wasteful number, since it uses less digits than its factorization.

102551530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 102551530 is about 10126.7729311958. The cubic root of 102551530 is about 468.0734933405.

The spelling of 102551530 in words is "one hundred two million, five hundred fifty-one thousand, five hundred thirty".