130232550 has 96 divisors (see below), whose sum is σ = 381118464. Its totient is φ = 28800000.

The previous prime is 130232539. The next prime is 130232551. The reversal of 130232550 is 55232031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130232551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30550 + ... + 34550.

It is an arithmetic number, because the mean of its divisors is an integer number (3969984).

Almost surely, 2^130232550 is an apocalyptic number.

130232550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 130232550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190559232).

130232550 is an abundant number, since it is smaller than the sum of its proper divisors (250885914).

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

130232550 is a wasteful number, since it uses less digits than its factorization.

130232550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054 (or 4049 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 130232550 is about 11411.9476865257. The cubic root of 130232550 is about 506.8815863571.

Adding to 130232550 its reverse (55232031), we get a palindrome (185464581).

It can be divided in two parts, 1302 and 32550, that multiplied together give a square (42380100 = 6510²).

The spelling of 130232550 in words is "one hundred thirty million, two hundred thirty-two thousand, five hundred fifty".