145383855 has 16 divisors (see below), whose sum is σ = 232886880. Its totient is φ = 77447168.

The previous prime is 145383829. The next prime is 145383859. The reversal of 145383855 is 558383541.

145383855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145383855 is a prime.

It is a super-2 number, since 2×145383855² = 42272930589322050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145383859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8719 + ... + 19151.

It is an arithmetic number, because the mean of its divisors is an integer number (14555430).

Almost surely, 2^145383855 is an apocalyptic number.

145383855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145383855 is a deficient number, since it is larger than the sum of its proper divisors (87503025).

145383855 is a wasteful number, since it uses less digits than its factorization.

145383855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11370.

The product of its digits is 288000, while the sum is 42.

The square root of 145383855 is about 12057.5227555249. The cubic root of 145383855 is about 525.8219686452.

The spelling of 145383855 in words is "one hundred forty-five million, three hundred eighty-three thousand, eight hundred fifty-five".