1252351044155 has 4 divisors (see below), whose sum is σ = 1502821252992. Its totient is φ = 1001880835320.

The previous prime is 1252351044121. The next prime is 1252351044167. The reversal of 1252351044155 is 5514401532521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1252351044155 - 2²⁰ = 1252349995579 is a prime.

It is a super-2 number, since 2×1252351044155² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125235104411 + ... + 125235104420.

It is an arithmetic number, because the mean of its divisors is an integer number (375705313248).

Almost surely, 2^{1252351044155} is an apocalyptic number.

1252351044155 is a deficient number, since it is larger than the sum of its proper divisors (250470208837).

1252351044155 is an equidigital number, since it uses as much as digits as its factorization.

1252351044155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250470208836.

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 1252351044155 its reverse (5514401532521), we get a palindrome (6766752576676).

The spelling of 1252351044155 in words is "one trillion, two hundred fifty-two billion, three hundred fifty-one million, forty-four thousand, one hundred fifty-five".