1266412534 has 4 divisors (see below), whose sum is σ = 1899618804. Its totient is φ = 633206266.

The previous prime is 1266412531. The next prime is 1266412559. The reversal of 1266412534 is 4352146621.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1266412534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266412531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316603132 + ... + 316603135.

It is an arithmetic number, because the mean of its divisors is an integer number (474904701).

Almost surely, 2^1266412534 is an apocalyptic number.

1266412534 is a deficient number, since it is larger than the sum of its proper divisors (633206270).

1266412534 is an equidigital number, since it uses as much as digits as its factorization.

1266412534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633206269.

The product of its digits is 34560, while the sum is 34.

The square root of 1266412534 is about 35586.6904052625. The cubic root of 1266412534 is about 1081.9114908302.

The spelling of 1266412534 in words is "one billion, two hundred sixty-six million, four hundred twelve thousand, five hundred thirty-four".