202113425 has 24 divisors (see below), whose sum is σ = 272556216. Its totient is φ = 148055040.

The previous prime is 202113413. The next prime is 202113427. The reversal of 202113425 is 524311202.

It can be written as a sum of positive squares in 12 ways, for example, as 16908544 + 185204881 = 4112^2 + 13609^2 .

It is not a de Polignac number, because 202113425 - 2⁸ = 202113169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202113397 and 202113406.

It is not an unprimeable number, because it can be changed into a prime (202113427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9299 + ... + 22151.

It is an arithmetic number, because the mean of its divisors is an integer number (11356509).

Almost surely, 2^202113425 is an apocalyptic number.

202113425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

202113425 is a deficient number, since it is larger than the sum of its proper divisors (70442791).

202113425 is a wasteful number, since it uses less digits than its factorization.

202113425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12917 (or 12912 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 202113425 is about 14216.6601211396. The cubic root of 202113425 is about 586.8562316055.

Adding to 202113425 its reverse (524311202), we get a palindrome (726424627).

The spelling of 202113425 in words is "two hundred two million, one hundred thirteen thousand, four hundred twenty-five".