145692020 has 18 divisors (see below), whose sum is σ = 306066642. Its totient is φ = 58255216.

The previous prime is 145692011. The next prime is 145692031. The reversal of 145692020 is 20296541.

It is a happy number.

145692020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 116553616 + 29138404 = 10796^2 + 5398^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52631 + ... + 55329.

Almost surely, 2^145692020 is an apocalyptic number.

145692020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145692020 is an abundant number, since it is smaller than the sum of its proper divisors (160374622).

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

145692020 is an frugal number, since it uses more digits than its factorization.

145692020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407 (or 2706 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 145692020 is about 12070.2949425439. The cubic root of 145692020 is about 526.1932285111.

The spelling of 145692020 in words is "one hundred forty-five million, six hundred ninety-two thousand, twenty".