135223750 has 20 divisors (see below), whose sum is σ = 253465740. Its totient is φ = 54089000.

The previous prime is 135223727. The next prime is 135223757. The reversal of 135223750 is 57322531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135223757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 52840 + ... + 55339.

It is an arithmetic number, because the mean of its divisors is an integer number (12673287).

Almost surely, 2^135223750 is an apocalyptic number.

135223750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135223750 is a deficient number, since it is larger than the sum of its proper divisors (118241990).

135223750 is an equidigital number, since it uses as much as digits as its factorization.

135223750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108201 (or 108186 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 135223750 is about 11628.5747191993. The cubic root of 135223750 is about 513.2760402503.

The spelling of 135223750 in words is "one hundred thirty-five million, two hundred twenty-three thousand, seven hundred fifty".