145023650 has 24 divisors (see below), whose sum is σ = 270399360. Its totient is φ = 57868560.

The previous prime is 145023647. The next prime is 145023661. The reversal of 145023650 is 56320541.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18647 + ... + 25253.

It is an arithmetic number, because the mean of its divisors is an integer number (11266640).

Almost surely, 2^145023650 is an apocalyptic number.

145023650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145023650 is a deficient number, since it is larger than the sum of its proper divisors (125375710).

145023650 is a wasteful number, since it uses less digits than its factorization.

145023650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7058 (or 7053 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 145023650 is about 12042.5765515524. The cubic root of 145023650 is about 525.3873483065.

The spelling of 145023650 in words is "one hundred forty-five million, twenty-three thousand, six hundred fifty".