1355044545 has 96 divisors (see below), whose sum is σ = 2534837760. Its totient is φ = 693930240.

The previous prime is 1355044543. The next prime is 1355044553. The reversal of 1355044545 is 5454405531.

1355044545 is a `hidden beast` number, since 13 + 550 + 44 + 54 + 5 = 666.

It is not a de Polignac number, because 1355044545 - 2¹ = 1355044543 is a prime.

It is a super-2 number, since 2×1355044545² = 3672291437868514050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1355044543) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3483211 + ... + 3483599.

It is an arithmetic number, because the mean of its divisors is an integer number (26404560).

Almost surely, 2^1355044545 is an apocalyptic number.

1355044545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1355044545 is a deficient number, since it is larger than the sum of its proper divisors (1179793215).

1355044545 is an equidigital number, since it uses as much as digits as its factorization.

1355044545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The square root of 1355044545 is about 36810.9296948610. The cubic root of 1355044545 is about 1106.5843505308.

The spelling of 1355044545 in words is "one billion, three hundred fifty-five million, forty-four thousand, five hundred forty-five".