203197140 has 48 divisors (see below), whose sum is σ = 632170560. Its totient is φ = 54185760.

The previous prime is 203197139. The next prime is 203197147. The reversal of 203197140 is 41791302.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203197147) 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, 187606 + ... + 188685.

It is an arithmetic number, because the mean of its divisors is an integer number (13170220).

Almost surely, 2^203197140 is an apocalyptic number.

203197140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203197140 is an abundant number, since it is smaller than the sum of its proper divisors (428973420).

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

203197140 is a wasteful number, since it uses less digits than its factorization.

203197140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376309 (or 376301 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 203197140 is about 14254.7234276923. The cubic root of 203197140 is about 587.9032535538.

The spelling of 203197140 in words is "two hundred three million, one hundred ninety-seven thousand, one hundred forty".