1252278168 has 16 divisors (see below), whose sum is σ = 3130695480. Its totient is φ = 417426048.

The previous prime is 1252278161. The next prime is 1252278169. The reversal of 1252278168 is 8618722521.

It is a super-2 number, since 2×1252278168² = 3136401220098872448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252278161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26089105 + ... + 26089152.

Almost surely, 2^1252278168 is an apocalyptic number.

It is an amenable number.

1252278168 is an abundant number, since it is smaller than the sum of its proper divisors (1878417312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252278168 is a wasteful number, since it uses less digits than its factorization.

1252278168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52178266 (or 52178262 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 1252278168 is about 35387.5425538423. The cubic root of 1252278168 is about 1077.8713697384.

The spelling of 1252278168 in words is "one billion, two hundred fifty-two million, two hundred seventy-eight thousand, one hundred sixty-eight".