1266136230 has 32 divisors (see below), whose sum is σ = 3143512800. Its totient is φ = 325993472.

The previous prime is 1266136169. The next prime is 1266136237. The reversal of 1266136230 is 326316621.

It is a super-2 number, since 2×1266136230² = 3206201905837225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266136237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726795 + ... + 728534.

It is an arithmetic number, because the mean of its divisors is an integer number (98234775).

Almost surely, 2^1266136230 is an apocalyptic number.

1266136230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1266136230 is an abundant number, since it is smaller than the sum of its proper divisors (1877376570).

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

1266136230 is a wasteful number, since it uses less digits than its factorization.

1266136230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455368.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1266136230 is about 35582.8080679420. The cubic root of 1266136230 is about 1081.8328018280.

The spelling of 1266136230 in words is "one billion, two hundred sixty-six million, one hundred thirty-six thousand, two hundred thirty".