101045442 has 32 divisors (see below), whose sum is σ = 207484992. Its totient is φ = 32788224.

The previous prime is 101045431. The next prime is 101045449. The reversal of 101045442 is 244540101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (101045449) 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 15 ways as a sum of consecutive naturals, for example, 117478 + ... + 118334.

It is an arithmetic number, because the mean of its divisors is an integer number (6483906).

Almost surely, 2^101045442 is an apocalyptic number.

101045442 is an abundant number, since it is smaller than the sum of its proper divisors (106439550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101045442 is a wasteful number, since it uses less digits than its factorization.

101045442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 101045442 is about 10052.1361908800. The cubic root of 101045442 is about 465.7707831553.

Adding to 101045442 its reverse (244540101), we get a palindrome (345585543).

The spelling of 101045442 in words is "one hundred one million, forty-five thousand, four hundred forty-two".