1260226157 has 8 divisors (see below), whose sum is σ = 1271497920. Its totient is φ = 1248979680.

The previous prime is 1260226111. The next prime is 1260226171. The reversal of 1260226157 is 7516220621.

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

It is a cyclic number.

It is not a de Polignac number, because 1260226157 - 2¹⁰ = 1260225133 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 (1260226657) 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, 101969 + ... + 113657.

It is an arithmetic number, because the mean of its divisors is an integer number (158937240).

Almost surely, 2^1260226157 is an apocalyptic number.

It is an amenable number.

1260226157 is a deficient number, since it is larger than the sum of its proper divisors (11271763).

1260226157 is a wasteful number, since it uses less digits than its factorization.

1260226157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12643.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1260226157 is about 35499.6641815102. The cubic root of 1260226157 is about 1080.1469155990.

Adding to 1260226157 its reverse (7516220621), we get a palindrome (8776446778).

The spelling of 1260226157 in words is "one billion, two hundred sixty million, two hundred twenty-six thousand, one hundred fifty-seven".