1245277066 has 12 divisors (see below), whose sum is σ = 2053163826. Its totient is φ = 566034920.

The previous prime is 1245277049. The next prime is 1245277087. The reversal of 1245277066 is 6607725421.

It can be written as a sum of positive squares in only one way, i.e., 1235171025 + 10106041 = 35145^2 + 3179^2 .

It is a super-2 number, since 2×1245277066² = 3101429942211136712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2572645 + ... + 2573128.

Almost surely, 2^1245277066 is an apocalyptic number.

1245277066 is a deficient number, since it is larger than the sum of its proper divisors (807886760).

1245277066 is a wasteful number, since it uses less digits than its factorization.

1245277066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145797 (or 5145786 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 1245277066 is about 35288.4834754910. The cubic root of 1245277066 is about 1075.8589323454.

The spelling of 1245277066 in words is "one billion, two hundred forty-five million, two hundred seventy-seven thousand, sixty-six".