235145220 has 24 divisors (see below), whose sum is σ = 658406784. Its totient is φ = 62705376.

The previous prime is 235145219. The next prime is 235145221. The reversal of 235145220 is 22541532.

It is an interprime number because it is at equal distance from previous prime (235145219) and next prime (235145221).

It is not an unprimeable number, because it can be changed into a prime (235145221) 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, 1959484 + ... + 1959603.

It is an arithmetic number, because the mean of its divisors is an integer number (27433616).

Almost surely, 2^235145220 is an apocalyptic number.

235145220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235145220 is an abundant number, since it is smaller than the sum of its proper divisors (423261564).

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

235145220 is a wasteful number, since it uses less digits than its factorization.

235145220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919099 (or 3919097 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 235145220 is about 15334.4455393731. The cubic root of 235145220 is about 617.2276670691.

Adding to 235145220 its reverse (22541532), we get a palindrome (257686752).

The spelling of 235145220 in words is "two hundred thirty-five million, one hundred forty-five thousand, two hundred twenty".