1226735131 has 8 divisors (see below), whose sum is σ = 1267200000. Its totient is φ = 1186326120.

The previous prime is 1226735117. The next prime is 1226735173. The reversal of 1226735131 is 1315376221.

It is a happy number.

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 1226735131 - 2¹⁵ = 1226702363 is a prime.

It is a super-2 number, since 2×1226735131² = 3009758163259174322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1226735093 and 1226735102.

It is not an unprimeable number, because it can be changed into a prime (1226735101) 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, 33270 + ... + 59668.

It is an arithmetic number, because the mean of its divisors is an integer number (158400000).

Almost surely, 2^1226735131 is an apocalyptic number.

1226735131 is a deficient number, since it is larger than the sum of its proper divisors (40464869).

1226735131 is a wasteful number, since it uses less digits than its factorization.

1226735131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27929.

The product of its digits is 7560, while the sum is 31.

The square root of 1226735131 is about 35024.7788144336. The cubic root of 1226735131 is about 1070.4924309236.

The spelling of 1226735131 in words is "one billion, two hundred twenty-six million, seven hundred thirty-five thousand, one hundred thirty-one".