145950890 has 8 divisors (see below), whose sum is σ = 262711620. Its totient is φ = 58380352.

The previous prime is 145950887. The next prime is 145950911. The reversal of 145950890 is 98059541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 134815321 + 11135569 = 11611^2 + 3337^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7297535 + ... + 7297554.

Almost surely, 2^145950890 is an apocalyptic number.

145950890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145950890 is a deficient number, since it is larger than the sum of its proper divisors (116760730).

145950890 is a wasteful number, since it uses less digits than its factorization.

145950890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14595096.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 145950890 is about 12081.0136164148. The cubic root of 145950890 is about 526.5046961381.

The spelling of 145950890 in words is "one hundred forty-five million, nine hundred fifty thousand, eight hundred ninety".