142297621441 has 8 divisors (see below), whose sum is σ = 144509356800. Its totient is φ = 140101628400.

The previous prime is 142297621391. The next prime is 142297621469. The reversal of 142297621441 is 144126792241.

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 142297621441 - 2¹⁷ = 142297490369 is a prime.

It is a super-2 number, since 2×142297621441² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142297621541) 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, 3917361 + ... + 3953518.

It is an arithmetic number, because the mean of its divisors is an integer number (18063669600).

Almost surely, 2^142297621441 is an apocalyptic number.

It is an amenable number.

142297621441 is a deficient number, since it is larger than the sum of its proper divisors (2211735359).

142297621441 is a wasteful number, since it uses less digits than its factorization.

142297621441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7871159.

The product of its digits is 193536, while the sum is 43.

The spelling of 142297621441 in words is "one hundred forty-two billion, two hundred ninety-seven million, six hundred twenty-one thousand, four hundred forty-one".