145538650 has 24 divisors (see below), whose sum is σ = 272080800. Its totient is φ = 57918960.

The previous prime is 145538639. The next prime is 145538669. The reversal of 145538650 is 56835541.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2637 + ... + 17263.

It is an arithmetic number, because the mean of its divisors is an integer number (11336700).

Almost surely, 2^145538650 is an apocalyptic number.

145538650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145538650 is a deficient number, since it is larger than the sum of its proper divisors (126542150).

145538650 is a wasteful number, since it uses less digits than its factorization.

145538650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14838 (or 14833 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 145538650 is about 12063.9400694798. The cubic root of 145538650 is about 526.0085224660.

The spelling of 145538650 in words is "one hundred forty-five million, five hundred thirty-eight thousand, six hundred fifty".