1235020253 has 8 divisors (see below), whose sum is σ = 1275446016. Its totient is φ = 1194631200.

The previous prime is 1235020231. The next prime is 1235020307. The reversal of 1235020253 is 3520205321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1235020253 - 2¹² = 1235016157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235020153) 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, 70250 + ... + 86052.

It is an arithmetic number, because the mean of its divisors is an integer number (159430752).

Almost surely, 2^1235020253 is an apocalyptic number.

It is an amenable number.

1235020253 is a deficient number, since it is larger than the sum of its proper divisors (40425763).

1235020253 is a wasteful number, since it uses less digits than its factorization.

1235020253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18355.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1235020253 is about 35142.8549352496. The cubic root of 1235020253 is about 1072.8969891443.

Adding to 1235020253 its reverse (3520205321), we get a palindrome (4755225574).

The spelling of 1235020253 in words is "one billion, two hundred thirty-five million, twenty thousand, two hundred fifty-three".