120142541 has 4 divisors (see below), whose sum is σ = 120194784. Its totient is φ = 120090300.

The previous prime is 120142537. The next prime is 120142549. The reversal of 120142541 is 145241021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120142541 - 2² = 120142537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120142549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22505 + ... + 27326.

It is an arithmetic number, because the mean of its divisors is an integer number (30048696).

Almost surely, 2^120142541 is an apocalyptic number.

It is an amenable number.

120142541 is a deficient number, since it is larger than the sum of its proper divisors (52243).

120142541 is an equidigital number, since it uses as much as digits as its factorization.

120142541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52242.

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

The square root of 120142541 is about 10960.9552959585. The cubic root of 120142541 is about 493.4376355534.

Adding to 120142541 its reverse (145241021), we get a palindrome (265383562).

The spelling of 120142541 in words is "one hundred twenty million, one hundred forty-two thousand, five hundred forty-one".