101242394 has 12 divisors (see below), whose sum is σ = 166924842. Its totient is φ = 46019160.

The previous prime is 101242391. The next prime is 101242403. The reversal of 101242394 is 493242101.

It can be written as a sum of positive squares in only one way, i.e., 99102025 + 2140369 = 9955^2 + 1463^2 .

It is not an unprimeable number, because it can be changed into a prime (101242391) 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 5 ways as a sum of consecutive naturals, for example, 208937 + ... + 209420.

Almost surely, 2^101242394 is an apocalyptic number.

101242394 is a deficient number, since it is larger than the sum of its proper divisors (65682448).

101242394 is a wasteful number, since it uses less digits than its factorization.

101242394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418381 (or 418370 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 101242394 is about 10061.9279464723. The cubic root of 101242394 is about 466.0732046821.

Adding to 101242394 its reverse (493242101), we get a palindrome (594484495).

The spelling of 101242394 in words is "one hundred one million, two hundred forty-two thousand, three hundred ninety-four".