101042290 has 16 divisors (see below), whose sum is σ = 182004480. Its totient is φ = 40388400.

The previous prime is 101042287. The next prime is 101042311. The reversal of 101042290 is 92240101.

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 7 ways as a sum of consecutive naturals, for example, 16921 + ... + 22099.

It is an arithmetic number, because the mean of its divisors is an integer number (11375280).

Almost surely, 2^101042290 is an apocalyptic number.

101042290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101042290 is a deficient number, since it is larger than the sum of its proper divisors (80962190).

101042290 is a wasteful number, since it uses less digits than its factorization.

101042290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7137.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 101042290 is about 10051.9794070621. The cubic root of 101042290 is about 465.7659400380.

Adding to 101042290 its reverse (92240101), we get a palindrome (193282391).

The spelling of 101042290 in words is "one hundred one million, forty-two thousand, two hundred ninety".