1377455345 has 64 divisors (see below), whose sum is σ = 2055144960. Its totient is φ = 864940032.

The previous prime is 1377455341. The next prime is 1377455411. The reversal of 1377455345 is 5435547731.

It is a cyclic number.

It is not a de Polignac number, because 1377455345 - 2² = 1377455341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1377455296 and 1377455305.

It is not an unprimeable number, because it can be changed into a prime (1377455341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4345127 + ... + 4345443.

It is an arithmetic number, because the mean of its divisors is an integer number (32111640).

Almost surely, 2^1377455345 is an apocalyptic number.

It is an amenable number.

1377455345 is a deficient number, since it is larger than the sum of its proper divisors (677689615).

1377455345 is a wasteful number, since it uses less digits than its factorization.

1377455345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522.

The product of its digits is 882000, while the sum is 44.

The square root of 1377455345 is about 37114.0855336623. The cubic root of 1377455345 is about 1112.6515472546.

The spelling of 1377455345 in words is "one billion, three hundred seventy-seven million, four hundred fifty-five thousand, three hundred forty-five".