1138154 has 4 divisors (see below), whose sum is σ = 1707234. Its totient is φ = 569076.

The previous prime is 1138147. The next prime is 1138171. The reversal of 1138154 is 4518311.

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., 851929 + 286225 = 923^2 + 535^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284537 + ... + 284540.

2^1138154 is an apocalyptic number.

1138154 is a deficient number, since it is larger than the sum of its proper divisors (569080).

1138154 is an equidigital number, since it uses as much as digits as its factorization.

1138154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569079.

The product of its digits is 480, while the sum is 23.

The square root of 1138154 is about 1066.8430062572. The cubic root of 1138154 is about 104.4079758835.

The spelling of 1138154 in words is "one million, one hundred thirty-eight thousand, one hundred fifty-four".