145355511 has 32 divisors (see below), whose sum is σ = 233856000. Its totient is φ = 80179680.

The previous prime is 145355503. The next prime is 145355513. The reversal of 145355511 is 115553541.

It is not a de Polignac number, because 145355511 - 2³ = 145355503 is a prime.

It is a super-2 number, since 2×145355511² = 42256449156142242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145355513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27406 + ... + 32276.

It is an arithmetic number, because the mean of its divisors is an integer number (7308000).

Almost surely, 2^145355511 is an apocalyptic number.

145355511 is a deficient number, since it is larger than the sum of its proper divisors (88500489).

145355511 is an equidigital number, since it uses as much as digits as its factorization.

145355511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4924 (or 4910 counting only the distinct ones).

The product of its digits is 7500, while the sum is 30.

The square root of 145355511 is about 12056.3473324220. The cubic root of 145355511 is about 525.7877950512.

The spelling of 145355511 in words is "one hundred forty-five million, three hundred fifty-five thousand, five hundred eleven".