245201100 has 36 divisors (see below), whose sum is σ = 709449384. Its totient is φ = 65386880.

The previous prime is 245201083. The next prime is 245201107. The reversal of 245201100 is 1102542.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 245201100.

It is not an unprimeable number, because it can be changed into a prime (245201107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408369 + ... + 408968.

Almost surely, 2^245201100 is an apocalyptic number.

245201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245201100 is an abundant number, since it is smaller than the sum of its proper divisors (464248284).

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

245201100 is a wasteful number, since it uses less digits than its factorization.

245201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817354 (or 817347 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 245201100 is about 15658.8984286890. The cubic root of 245201100 is about 625.9036315570.

Adding to 245201100 its reverse (1102542), we get a palindrome (246303642).

The spelling of 245201100 in words is "two hundred forty-five million, two hundred one thousand, one hundred".