145234511 has 4 divisors (see below), whose sum is σ = 146731872. Its totient is φ = 143737152.

The previous prime is 145234471. The next prime is 145234549. The reversal of 145234511 is 115432541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145234511 - 2⁶ = 145234447 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 (145234571) 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, 748535 + ... + 748728.

It is an arithmetic number, because the mean of its divisors is an integer number (36682968).

Almost surely, 2^145234511 is an apocalyptic number.

145234511 is a deficient number, since it is larger than the sum of its proper divisors (1497361).

145234511 is an equidigital number, since it uses as much as digits as its factorization.

145234511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497360.

The product of its digits is 2400, while the sum is 26.

The square root of 145234511 is about 12051.3281840634. The cubic root of 145234511 is about 525.6418586402.

The spelling of 145234511 in words is "one hundred forty-five million, two hundred thirty-four thousand, five hundred eleven".