145511513 has 8 divisors (see below), whose sum is σ = 166371840. Its totient is φ = 124669440.

The previous prime is 145511459. The next prime is 145511521. The reversal of 145511513 is 315115541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145511513 - 2¹⁶ = 145445977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145511563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29048 + ... + 33686.

It is an arithmetic number, because the mean of its divisors is an integer number (20796480).

Almost surely, 2^145511513 is an apocalyptic number.

It is an amenable number.

145511513 is a deficient number, since it is larger than the sum of its proper divisors (20860327).

145511513 is an equidigital number, since it uses as much as digits as its factorization.

145511513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9127.

The product of its digits is 1500, while the sum is 26.

The square root of 145511513 is about 12062.8153015786. The cubic root of 145511513 is about 525.9758274154.

The spelling of 145511513 in words is "one hundred forty-five million, five hundred eleven thousand, five hundred thirteen".