102235540 has 48 divisors (see below), whose sum is σ = 234964800. Its totient is φ = 37057280.

The previous prime is 102235537. The next prime is 102235541. The reversal of 102235540 is 45532201.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102235541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96936 + ... + 97984.

It is an arithmetic number, because the mean of its divisors is an integer number (4895100).

Almost surely, 2^102235540 is an apocalyptic number.

102235540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102235540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117482400).

102235540 is an abundant number, since it is smaller than the sum of its proper divisors (132729260).

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

102235540 is a wasteful number, since it uses less digits than its factorization.

102235540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 1510 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 102235540 is about 10111.1591818149. The cubic root of 102235540 is about 467.5922435155.

Adding to 102235540 its reverse (45532201), we get a palindrome (147767741).

The spelling of 102235540 in words is "one hundred two million, two hundred thirty-five thousand, five hundred forty".