145850890 has 8 divisors (see below), whose sum is σ = 262531620. Its totient is φ = 58340352.

The previous prime is 145850879. The next prime is 145850911. The reversal of 145850890 is 98058541.

It can be written as a sum of positive squares in 2 ways, for example, as 145274809 + 576081 = 12053^2 + 759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145850890² = 42544964227584200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7292535 + ... + 7292554.

Almost surely, 2^145850890 is an apocalyptic number.

145850890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145850890 is a deficient number, since it is larger than the sum of its proper divisors (116680730).

145850890 is a wasteful number, since it uses less digits than its factorization.

145850890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14585096.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 145850890 is about 12076.8741816747. The cubic root of 145850890 is about 526.3844216657.

The spelling of 145850890 in words is "one hundred forty-five million, eight hundred fifty thousand, eight hundred ninety".