145880090 has 8 divisors (see below), whose sum is σ = 262584180. Its totient is φ = 58352032.

The previous prime is 145880087. The next prime is 145880093. The reversal of 145880090 is 90088541.

It is an interprime number because it is at equal distance from previous prime (145880087) and next prime (145880093).

It can be written as a sum of positive squares in 2 ways, for example, as 141158161 + 4721929 = 11881^2 + 2173^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 145880090.

It is not an unprimeable number, because it can be changed into a prime (145880093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7293995 + ... + 7294014.

Almost surely, 2^145880090 is an apocalyptic number.

145880090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145880090 is a deficient number, since it is larger than the sum of its proper divisors (116704090).

145880090 is a wasteful number, since it uses less digits than its factorization.

145880090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14588016.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 145880090 is about 12078.0830432648. The cubic root of 145880090 is about 526.4195474929.

The spelling of 145880090 in words is "one hundred forty-five million, eight hundred eighty thousand, ninety".