1373654123 has 6 divisors (see below), whose sum is σ = 1386879084. Its totient is φ = 1360436436.

The previous prime is 1373654071. The next prime is 1373654131. The reversal of 1373654123 is 3214563731.

It is not a de Polignac number, because 1373654123 - 2¹² = 1373650027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1373654143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 381590 + ... + 385172.

It is an arithmetic number, because the mean of its divisors is an integer number (231146514).

Almost surely, 2^1373654123 is an apocalyptic number.

1373654123 is a deficient number, since it is larger than the sum of its proper divisors (13224961).

1373654123 is an frugal number, since it uses more digits than its factorization.

1373654123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7273 (or 3690 counting only the distinct ones).

The product of its digits is 45360, while the sum is 35.

The square root of 1373654123 is about 37062.8401906816. The cubic root of 1373654123 is about 1111.6271142803.

The spelling of 1373654123 in words is "one billion, three hundred seventy-three million, six hundred fifty-four thousand, one hundred twenty-three".