145757533 has 4 divisors (see below), whose sum is σ = 147810528. Its totient is φ = 143704540.

The previous prime is 145757503. The next prime is 145757537. The reversal of 145757533 is 335757541.

It is a happy number.

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 145757533 - 2⁹ = 145757021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145757537) 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, 1026391 + ... + 1026532.

It is an arithmetic number, because the mean of its divisors is an integer number (36952632).

Almost surely, 2^145757533 is an apocalyptic number.

It is an amenable number.

145757533 is a deficient number, since it is larger than the sum of its proper divisors (2052995).

145757533 is an equidigital number, since it uses as much as digits as its factorization.

145757533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052994.

The product of its digits is 220500, while the sum is 40.

The square root of 145757533 is about 12073.0084486014. The cubic root of 145757533 is about 526.2720873971.

The spelling of 145757533 in words is "one hundred forty-five million, seven hundred fifty-seven thousand, five hundred thirty-three".