1355431455 has 64 divisors (see below), whose sum is σ = 2775168000. Its totient is φ = 614839680.

The previous prime is 1355431433. The next prime is 1355431499. The reversal of 1355431455 is 5541345531.

It is not a de Polignac number, because 1355431455 - 2⁶ = 1355431391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 118321 + ... + 129269.

It is an arithmetic number, because the mean of its divisors is an integer number (43362000).

Almost surely, 2^1355431455 is an apocalyptic number.

1355431455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1355431455 is an abundant number, since it is smaller than the sum of its proper divisors (1419736545).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1355431455 is a wasteful number, since it uses less digits than its factorization.

1355431455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11101 (or 11095 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 1355431455 is about 36816.1846882590. The cubic root of 1355431455 is about 1106.6896626425.

Adding to 1355431455 its reverse (5541345531), we get a palindrome (6896776986).

The spelling of 1355431455 in words is "one billion, three hundred fifty-five million, four hundred thirty-one thousand, four hundred fifty-five".