1268153134 has 4 divisors (see below), whose sum is σ = 1902229704. Its totient is φ = 634076566.

The previous prime is 1268153123. The next prime is 1268153137. The reversal of 1268153134 is 4313518621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4313518621 = 51241 ⋅84181.

It is a self number, because there is not a number n which added to its sum of digits gives 1268153134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268153137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317038282 + ... + 317038285.

It is an arithmetic number, because the mean of its divisors is an integer number (475557426).

Almost surely, 2^1268153134 is an apocalyptic number.

1268153134 is a deficient number, since it is larger than the sum of its proper divisors (634076570).

1268153134 is an equidigital number, since it uses as much as digits as its factorization.

1268153134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634076569.

The product of its digits is 17280, while the sum is 34.

The square root of 1268153134 is about 35611.1377801946. The cubic root of 1268153134 is about 1082.4069357667.

The spelling of 1268153134 in words is "one billion, two hundred sixty-eight million, one hundred fifty-three thousand, one hundred thirty-four".