145143533 has 4 divisors (see below), whose sum is σ = 148519008. Its totient is φ = 141768060.

The previous prime is 145143469. The next prime is 145143571. The reversal of 145143533 is 335341541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145143533 - 2⁶ = 145143469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145143496 and 145143505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145143233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687673 + ... + 1687758.

It is an arithmetic number, because the mean of its divisors is an integer number (37129752).

Almost surely, 2^145143533 is an apocalyptic number.

It is an amenable number.

145143533 is a deficient number, since it is larger than the sum of its proper divisors (3375475).

145143533 is an equidigital number, since it uses as much as digits as its factorization.

145143533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375474.

The product of its digits is 10800, while the sum is 29.

The square root of 145143533 is about 12047.5529880553. The cubic root of 145143533 is about 525.5320779512.

The spelling of 145143533 in words is "one hundred forty-five million, one hundred forty-three thousand, five hundred thirty-three".