1377669121 has 8 divisors (see below), whose sum is σ = 1404449280. Its totient is φ = 1350918192.

The previous prime is 1377669113. The next prime is 1377669127. The reversal of 1377669121 is 1219667731.

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 1377669121 - 2³ = 1377669113 is a prime.

It is a super-3 number, since 3×1377669121³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1377669127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104160 + ... + 116638.

It is an arithmetic number, because the mean of its divisors is an integer number (175556160).

Almost surely, 2^1377669121 is an apocalyptic number.

It is an amenable number.

1377669121 is a deficient number, since it is larger than the sum of its proper divisors (26780159).

1377669121 is a wasteful number, since it uses less digits than its factorization.

1377669121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14615.

The product of its digits is 95256, while the sum is 43.

The square root of 1377669121 is about 37116.9654066708. The cubic root of 1377669121 is about 1112.7091040856.

The spelling of 1377669121 in words is "one billion, three hundred seventy-seven million, six hundred sixty-nine thousand, one hundred twenty-one".