1425656144231 has 8 divisors (see below), whose sum is σ = 1571294870544. Its totient is φ = 1282689688320.

The previous prime is 1425656144191. The next prime is 1425656144243. The reversal of 1425656144231 is 1324416565241.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425656144231 is a prime.

It is a super-2 number, since 2×1425656144231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425656144251) 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, 668066480 + ... + 668068613.

It is an arithmetic number, because the mean of its divisors is an integer number (196411858818).

Almost surely, 2^{1425656144231} is an apocalyptic number.

1425656144231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1425656144231 is a deficient number, since it is larger than the sum of its proper divisors (145638726313).

1425656144231 is a wasteful number, since it uses less digits than its factorization.

1425656144231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336135201.

The product of its digits is 691200, while the sum is 44.

The spelling of 1425656144231 in words is "one trillion, four hundred twenty-five billion, six hundred fifty-six million, one hundred forty-four thousand, two hundred thirty-one".