101030290 has 8 divisors (see below), whose sum is σ = 181854540. Its totient is φ = 40412112.

The previous prime is 101030233. The next prime is 101030291. The reversal of 101030290 is 92030101.

It can be written as a sum of positive squares in 2 ways, for example, as 99022401 + 2007889 = 9951^2 + 1417^2 .

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

It is not an unprimeable number, because it can be changed into a prime (101030291) by changing a digit.

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, 5051505 + ... + 5051524.

Almost surely, 2^101030290 is an apocalyptic number.

101030290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101030290 is a deficient number, since it is larger than the sum of its proper divisors (80824250).

101030290 is a wasteful number, since it uses less digits than its factorization.

101030290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10103036.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 101030290 is about 10051.3824919759. The cubic root of 101030290 is about 465.7475008526.

Adding to 101030290 its reverse (92030101), we get a palindrome (193060391).

The spelling of 101030290 in words is "one hundred one million, thirty thousand, two hundred ninety".