1423256254645 has 8 divisors (see below), whose sum is σ = 1708242354360. Its totient is φ = 1138381771200.

The previous prime is 1423256254591. The next prime is 1423256254661. The reversal of 1423256254645 is 5464526523241.

It can be written as a sum of positive squares in 4 ways, for example, as 7939166404 + 1415317088241 = 89102^2 + 1189671^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1423256254645 is a prime.

It is a super-2 number, since 2×1423256254645² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27876010 + ... + 27927019.

It is an arithmetic number, because the mean of its divisors is an integer number (213530294295).

Almost surely, 2^{1423256254645} is an apocalyptic number.

It is an amenable number.

1423256254645 is a deficient number, since it is larger than the sum of its proper divisors (284986099715).

1423256254645 is an equidigital number, since it uses as much as digits as its factorization.

1423256254645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55808135.

The product of its digits is 6912000, while the sum is 49.

The spelling of 1423256254645 in words is "one trillion, four hundred twenty-three billion, two hundred fifty-six million, two hundred fifty-four thousand, six hundred forty-five".