145134451 has 16 divisors (see below), whose sum is σ = 181824768. Its totient is φ = 112543200.

The previous prime is 145134443. The next prime is 145134463. The reversal of 145134451 is 154431541.

145134451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145134451 - 2³ = 145134443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145134401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11781 + ... + 20713.

It is an arithmetic number, because the mean of its divisors is an integer number (11364048).

Almost surely, 2^145134451 is an apocalyptic number.

145134451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145134451 is a deficient number, since it is larger than the sum of its proper divisors (36690317).

145134451 is a wasteful number, since it uses less digits than its factorization.

145134451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9162.

The product of its digits is 4800, while the sum is 28.

The square root of 145134451 is about 12047.1760591435. The cubic root of 145134451 is about 525.5211164297.

Adding to 145134451 its reverse (154431541), we get a palindrome (299565992).

The spelling of 145134451 in words is "one hundred forty-five million, one hundred thirty-four thousand, four hundred fifty-one".