142213541 has 8 divisors (see below), whose sum is σ = 145672800. Its totient is φ = 138789360.

The previous prime is 142213529. The next prime is 142213553. The reversal of 142213541 is 145312241.

It is an interprime number because it is at equal distance from previous prime (142213529) and next prime (142213553).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142213541 - 2¹⁰ = 142212517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142213571) 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 7 ways as a sum of consecutive naturals, for example, 470 + ... + 16871.

It is an arithmetic number, because the mean of its divisors is an integer number (18209100).

Almost surely, 2^142213541 is an apocalyptic number.

It is an amenable number.

142213541 is a deficient number, since it is larger than the sum of its proper divisors (3459259).

142213541 is a wasteful number, since it uses less digits than its factorization.

142213541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17539.

The product of its digits is 960, while the sum is 23.

The square root of 142213541 is about 11925.3319031380. The cubic root of 142213541 is about 521.9717313660.

Adding to 142213541 its reverse (145312241), we get a palindrome (287525782).

The spelling of 142213541 in words is "one hundred forty-two million, two hundred thirteen thousand, five hundred forty-one".