1442121501 has 8 divisors (see below), whose sum is σ = 1926746784. Its totient is φ = 959455280.

The previous prime is 1442121493. The next prime is 1442121503. The reversal of 1442121501 is 1051212441.

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 1442121501 - 2³ = 1442121493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442121503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488046 + ... + 490991.

It is an arithmetic number, because the mean of its divisors is an integer number (240843348).

Almost surely, 2^1442121501 is an apocalyptic number.

It is an amenable number.

1442121501 is a deficient number, since it is larger than the sum of its proper divisors (484625283).

1442121501 is an equidigital number, since it uses as much as digits as its factorization.

1442121501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979531.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1442121501 is about 37975.2748640481. The cubic root of 1442121501 is about 1129.7975205642.

Adding to 1442121501 its reverse (1051212441), we get a palindrome (2493333942).

The spelling of 1442121501 in words is "one billion, four hundred forty-two million, one hundred twenty-one thousand, five hundred one".