1377657212 has 6 divisors (see below), whose sum is σ = 2410900128. Its totient is φ = 688828604.

The previous prime is 1377657199. The next prime is 1377657227. The reversal of 1377657212 is 2127567731.

It is a super-2 number, since 2×1377657212² = 3795878787551225888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1377657212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172207148 + ... + 172207155.

It is an arithmetic number, because the mean of its divisors is an integer number (401816688).

Almost surely, 2^1377657212 is an apocalyptic number.

It is an amenable number.

1377657212 is a deficient number, since it is larger than the sum of its proper divisors (1033242916).

1377657212 is a wasteful number, since it uses less digits than its factorization.

1377657212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344414307 (or 344414305 counting only the distinct ones).

The product of its digits is 123480, while the sum is 41.

The square root of 1377657212 is about 37116.8049810325. The cubic root of 1377657212 is about 1112.7058978753.

The spelling of 1377657212 in words is "one billion, three hundred seventy-seven million, six hundred fifty-seven thousand, two hundred twelve".