1252634887 has 8 divisors (see below), whose sum is σ = 1477763072. Its totient is φ = 1039051800.

The previous prime is 1252634863. The next prime is 1252634891. The reversal of 1252634887 is 7884362521.

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

It is not a de Polignac number, because 1252634887 - 2¹¹ = 1252632839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252634837) 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, 2886039 + ... + 2886472.

It is an arithmetic number, because the mean of its divisors is an integer number (184720384).

Almost surely, 2^1252634887 is an apocalyptic number.

1252634887 is a deficient number, since it is larger than the sum of its proper divisors (225128185).

1252634887 is an equidigital number, since it uses as much as digits as its factorization.

1252634887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772549.

The product of its digits is 645120, while the sum is 46.

The square root of 1252634887 is about 35392.5823725820. The cubic root of 1252634887 is about 1077.9737060787.

It can be divided in two parts, 1252634 and 887, that added together give a palindrome (1253521).

The spelling of 1252634887 in words is "one billion, two hundred fifty-two million, six hundred thirty-four thousand, eight hundred eighty-seven".