1355133031 has 4 divisors (see below), whose sum is σ = 1548723472. Its totient is φ = 1161542592.

The previous prime is 1355133001. The next prime is 1355133049. The reversal of 1355133031 is 1303315531.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-1355133031 is a prime.

It is a super-2 number, since 2×1355133031² = 3672771063414493922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1355132987 and 1355133005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355133001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96795210 + ... + 96795223.

It is an arithmetic number, because the mean of its divisors is an integer number (387180868).

Almost surely, 2^1355133031 is an apocalyptic number.

1355133031 is a deficient number, since it is larger than the sum of its proper divisors (193590441).

1355133031 is an equidigital number, since it uses as much as digits as its factorization.

1355133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193590440.

The product of its (nonzero) digits is 2025, while the sum is 25.

The square root of 1355133031 is about 36812.1315737081. The cubic root of 1355133031 is about 1106.6084370924.

Adding to 1355133031 its reverse (1303315531), we get a palindrome (2658448562).

The spelling of 1355133031 in words is "one billion, three hundred fifty-five million, one hundred thirty-three thousand, thirty-one".