145134511 has 4 divisors (see below), whose sum is σ = 147872952. Its totient is φ = 142396072.

The previous prime is 145134463. The next prime is 145134551. The reversal of 145134511 is 115431541.

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 145134511 - 2⁹ = 145133999 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 (145134551) 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, 1369141 + ... + 1369246.

It is an arithmetic number, because the mean of its divisors is an integer number (36968238).

Almost surely, 2^145134511 is an apocalyptic number.

145134511 is a deficient number, since it is larger than the sum of its proper divisors (2738441).

145134511 is an equidigital number, since it uses as much as digits as its factorization.

145134511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738440.

The product of its digits is 1200, while the sum is 25.

The square root of 145134511 is about 12047.1785493534. The cubic root of 145134511 is about 525.5211888482.

The spelling of 145134511 in words is "one hundred forty-five million, one hundred thirty-four thousand, five hundred eleven".