145513255 has 8 divisors (see below), whose sum is σ = 174687552. Its totient is φ = 116362848.

The previous prime is 145513231. The next prime is 145513301. The reversal of 145513255 is 552315541.

145513255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 145513255 - 2⁷ = 145513127 is a prime.

It is a super-3 number, since 3×145513255³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12802 + ... + 21328.

It is an arithmetic number, because the mean of its divisors is an integer number (21835944).

Almost surely, 2^145513255 is an apocalyptic number.

145513255 is a deficient number, since it is larger than the sum of its proper divisors (29174297).

145513255 is an equidigital number, since it uses as much as digits as its factorization.

145513255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11945.

The product of its digits is 15000, while the sum is 31.

The square root of 145513255 is about 12062.8875067291. The cubic root of 145513255 is about 525.9779263243.

Adding to 145513255 its reverse (552315541), we get a palindrome (697828796).

The spelling of 145513255 in words is "one hundred forty-five million, five hundred thirteen thousand, two hundred fifty-five".