102315450 has 48 divisors (see below), whose sum is σ = 254358720. Its totient is φ = 27217920.

The previous prime is 102315443. The next prime is 102315457. The reversal of 102315450 is 54513201.

It is an interprime number because it is at equal distance from previous prime (102315443) and next prime (102315457).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102315457) 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, 114907 + ... + 115793.

It is an arithmetic number, because the mean of its divisors is an integer number (5299140).

Almost surely, 2^102315450 is an apocalyptic number.

102315450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102315450 is an abundant number, since it is smaller than the sum of its proper divisors (152043270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102315450 is a wasteful number, since it uses less digits than its factorization.

102315450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 102315450 is about 10115.1099845726. The cubic root of 102315450 is about 467.7140392732.

Adding to 102315450 its reverse (54513201), we get a palindrome (156828651).

The spelling of 102315450 in words is "one hundred two million, three hundred fifteen thousand, four hundred fifty".