1355145405 has 32 divisors (see below), whose sum is σ = 2202681600. Its totient is φ = 711298560.

The previous prime is 1355145403. The next prime is 1355145409. The reversal of 1355145405 is 5045415531.

It is not a de Polignac number, because 1355145405 - 2¹ = 1355145403 is a prime.

It is a super-2 number, since 2×1355145405² = 3672838137385228050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355145403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1116579 + ... + 1117791.

It is an arithmetic number, because the mean of its divisors is an integer number (68833800).

Almost surely, 2^1355145405 is an apocalyptic number.

1355145405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1355145405 is a deficient number, since it is larger than the sum of its proper divisors (847536195).

1355145405 is a wasteful number, since it uses less digits than its factorization.

1355145405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341.

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 1355145405 is about 36812.2996429183. The cubic root of 1355145405 is about 1106.6118053056.

The spelling of 1355145405 in words is "one billion, three hundred fifty-five million, one hundred forty-five thousand, four hundred five".