101214542 has 16 divisors (see below), whose sum is σ = 178364592. Its totient is φ = 42467520.

The previous prime is 101214517. The next prime is 101214557. The reversal of 101214542 is 245412101.

It is a happy number.

It is a congruent number.

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, 176663 + ... + 177234.

It is an arithmetic number, because the mean of its divisors is an integer number (11147787).

Almost surely, 2^101214542 is an apocalyptic number.

101214542 is a deficient number, since it is larger than the sum of its proper divisors (77150050).

101214542 is a wasteful number, since it uses less digits than its factorization.

101214542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353923.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 101214542 is about 10060.5438222792. The cubic root of 101214542 is about 466.0304615158.

Adding to 101214542 its reverse (245412101), we get a palindrome (346626643).

The spelling of 101214542 in words is "one hundred one million, two hundred fourteen thousand, five hundred forty-two".