1355043945 has 32 divisors (see below), whose sum is σ = 2266398720. Its totient is φ = 690505920.

The previous prime is 1355043917. The next prime is 1355043947. The reversal of 1355043945 is 5493405531.

It is not a de Polignac number, because 1355043945 - 2⁵ = 1355043913 is a prime.

It is a super-2 number, since 2×1355043945² = 3672288185762326050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1355043947) 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, 18292 + ... + 55178.

It is an arithmetic number, because the mean of its divisors is an integer number (70824960).

Almost surely, 2^1355043945 is an apocalyptic number.

1355043945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1355043945 is a deficient number, since it is larger than the sum of its proper divisors (911354775).

1355043945 is a wasteful number, since it uses less digits than its factorization.

1355043945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37005.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 1355043945 is about 36810.9215451067. The cubic root of 1355043945 is about 1106.5841872027.

The spelling of 1355043945 in words is "one billion, three hundred fifty-five million, forty-three thousand, nine hundred forty-five".