1343738253 has 16 divisors (see below), whose sum is σ = 2104877376. Its totient is φ = 751741440.

The previous prime is 1343738237. The next prime is 1343738281. The reversal of 1343738253 is 3528373431.

It is not a de Polignac number, because 1343738253 - 2⁴ = 1343738237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343738233) 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, 1565700 + ... + 1566557.

It is an arithmetic number, because the mean of its divisors is an integer number (131554836).

Almost surely, 2^1343738253 is an apocalyptic number.

1343738253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1343738253 is a deficient number, since it is larger than the sum of its proper divisors (761139123).

1343738253 is a wasteful number, since it uses less digits than its factorization.

1343738253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132284.

The product of its digits is 181440, while the sum is 39.

The square root of 1343738253 is about 36657.0355184377. The cubic root of 1343738253 is about 1103.4980250156.

The spelling of 1343738253 in words is "one billion, three hundred forty-three million, seven hundred thirty-eight thousand, two hundred fifty-three".