145743620 has 48 divisors (see below), whose sum is σ = 335664000. Its totient is φ = 52715520.

The previous prime is 145743607. The next prime is 145743673. The reversal of 145743620 is 26347541.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42116 + ... + 45444.

It is an arithmetic number, because the mean of its divisors is an integer number (6993000).

Almost surely, 2^145743620 is an apocalyptic number.

145743620 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 145743620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167832000).

145743620 is an abundant number, since it is smaller than the sum of its proper divisors (189920380).

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

145743620 is a wasteful number, since it uses less digits than its factorization.

145743620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548 (or 3546 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 145743620 is about 12072.4322321560. The cubic root of 145743620 is about 526.2553421070.

The spelling of 145743620 in words is "one hundred forty-five million, seven hundred forty-three thousand, six hundred twenty".