1270146157 has 8 divisors (see below), whose sum is σ = 1451811200. Its totient is φ = 1088535024.

The previous prime is 1270146151. The next prime is 1270146173. The reversal of 1270146157 is 7516410721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1270146157 is a prime.

It is a super-2 number, since 2×1270146157² = 3226542520283737298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270146151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85219 + ... + 99007.

It is an arithmetic number, because the mean of its divisors is an integer number (181476400).

Almost surely, 2^1270146157 is an apocalyptic number.

It is an amenable number.

1270146157 is a deficient number, since it is larger than the sum of its proper divisors (181665043).

1270146157 is a wasteful number, since it uses less digits than its factorization.

1270146157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26955.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 1270146157 is about 35639.1099355750. The cubic root of 1270146157 is about 1082.9736740499.

Adding to 1270146157 its reverse (7516410721), we get a palindrome (8786556878).

The spelling of 1270146157 in words is "one billion, two hundred seventy million, one hundred forty-six thousand, one hundred fifty-seven".