122143542 has 16 divisors (see below), whose sum is σ = 246706992. Its totient is φ = 40311200.

The previous prime is 122143531. The next prime is 122143543. The reversal of 122143542 is 245341221.

It is a super-4 number, since 4×122143542⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122143543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100173 + ... + 101384.

It is an arithmetic number, because the mean of its divisors is an integer number (15419187).

Almost surely, 2^122143542 is an apocalyptic number.

122143542 is an abundant number, since it is smaller than the sum of its proper divisors (124563450).

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

122143542 is a wasteful number, since it uses less digits than its factorization.

122143542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201663.

The product of its digits is 1920, while the sum is 24.

The square root of 122143542 is about 11051.8569480427. The cubic root of 122143542 is about 496.1620042905.

Adding to 122143542 its reverse (245341221), we get a palindrome (367484763).

The spelling of 122143542 in words is "one hundred twenty-two million, one hundred forty-three thousand, five hundred forty-two".