103520253 has 32 divisors (see below), whose sum is σ = 146644992. Its totient is φ = 64872000.

The previous prime is 103520239. The next prime is 103520267. The reversal of 103520253 is 352025301.

It is an interprime number because it is at equal distance from previous prime (103520239) and next prime (103520267).

It is not a de Polignac number, because 103520253 - 2⁴ = 103520237 is a prime.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103520213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 967426 + ... + 967532.

It is an arithmetic number, because the mean of its divisors is an integer number (4582656).

Almost surely, 2^103520253 is an apocalyptic number.

It is an amenable number.

103520253 is a deficient number, since it is larger than the sum of its proper divisors (43124739).

103520253 is a wasteful number, since it uses less digits than its factorization.

103520253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 103520253 is about 10174.4903066444. The cubic root of 103520253 is about 469.5427165431.

Adding to 103520253 its reverse (352025301), we get a palindrome (455545554).

The spelling of 103520253 in words is "one hundred three million, five hundred twenty thousand, two hundred fifty-three".