142256515254601 has 4 divisors (see below), whose sum is σ = 155188925732304. Its totient is φ = 129324104776900.

The previous prime is 142256515254583. The next prime is 142256515254641. The reversal of 142256515254601 is 106452515652241.

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 not a de Polignac number, because 142256515254601 - 2¹³ = 142256515246409 is a prime.

It is a super-2 number, since 2×142256515254601² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142256515254641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6466205238835 + ... + 6466205238856.

It is an arithmetic number, because the mean of its divisors is an integer number (38797231433076).

Almost surely, 2^{142256515254601} is an apocalyptic number.

142256515254601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142256515254601 is a deficient number, since it is larger than the sum of its proper divisors (12932410477703).

142256515254601 is a wasteful number, since it uses less digits than its factorization.

142256515254601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12932410477702.

The product of its (nonzero) digits is 2880000, while the sum is 49.

The spelling of 142256515254601 in words is "one hundred forty-two trillion, two hundred fifty-six billion, five hundred fifteen million, two hundred fifty-four thousand, six hundred one".