145434254 has 12 divisors (see below), whose sum is σ = 253768104. Its totient is φ = 62328924.

The previous prime is 145434241. The next prime is 145434301. The reversal of 145434254 is 452434541.

It is a super-2 number, since 2×145434254² = 42302244473073032, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145434254.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 741914 + ... + 742109.

It is an arithmetic number, because the mean of its divisors is an integer number (21147342).

Almost surely, 2^145434254 is an apocalyptic number.

145434254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145434254 is a deficient number, since it is larger than the sum of its proper divisors (108333850).

145434254 is a wasteful number, since it uses less digits than its factorization.

145434254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484039 (or 1484032 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 145434254 is about 12059.6125145048. The cubic root of 145434254 is about 525.8827223874.

Adding to 145434254 its reverse (452434541), we get a palindrome (597868795).

The spelling of 145434254 in words is "one hundred forty-five million, four hundred thirty-four thousand, two hundred fifty-four".