1377133154 has 4 divisors (see below), whose sum is σ = 2065699734. Its totient is φ = 688566576.

The previous prime is 1377133139. The next prime is 1377133157. The reversal of 1377133154 is 4513317731.

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

It can be written as a sum of positive squares in only one way, i.e., 1087350625 + 289782529 = 32975^2 + 17023^2 .

It is not an unprimeable number, because it can be changed into a prime (1377133157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344283287 + ... + 344283290.

Almost surely, 2^1377133154 is an apocalyptic number.

1377133154 is a deficient number, since it is larger than the sum of its proper divisors (688566580).

1377133154 is an equidigital number, since it uses as much as digits as its factorization.

1377133154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688566579.

The product of its digits is 26460, while the sum is 35.

The square root of 1377133154 is about 37109.7447310002. The cubic root of 1377133154 is about 1112.5647896282.

The spelling of 1377133154 in words is "one billion, three hundred seventy-seven million, one hundred thirty-three thousand, one hundred fifty-four".