145254530 has 32 divisors (see below), whose sum is σ = 271185408. Its totient is φ = 55958400.

The previous prime is 145254523. The next prime is 145254539. The reversal of 145254530 is 35452541.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 145254493 and 145254502.

It is not an unprimeable number, because it can be changed into a prime (145254539) 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, 71225 + ... + 73235.

It is an arithmetic number, because the mean of its divisors is an integer number (8474544).

Almost surely, 2^145254530 is an apocalyptic number.

145254530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145254530 is a deficient number, since it is larger than the sum of its proper divisors (125930878).

145254530 is a wasteful number, since it uses less digits than its factorization.

145254530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 145254530 is about 12052.1587277964. The cubic root of 145254530 is about 525.6660088711. Note that the first 3 decimals are identical.

The spelling of 145254530 in words is "one hundred forty-five million, two hundred fifty-four thousand, five hundred thirty".