145650000 has 120 divisors (see below), whose sum is σ = 470782368. Its totient is φ = 38800000.

The previous prime is 145649993. The next prime is 145650031. The reversal of 145650000 is 56541.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149515 + ... + 150485.

Almost surely, 2^145650000 is an apocalyptic number.

145650000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145650000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235391184).

145650000 is an abundant number, since it is smaller than the sum of its proper divisors (325132368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145650000 is an frugal number, since it uses more digits than its factorization.

145650000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 145650000 is about 12068.5541801825. The cubic root of 145650000 is about 526.1426360227.

The spelling of 145650000 in words is "one hundred forty-five million, six hundred fifty thousand".