1455138 has 16 divisors (see below), whose sum is σ = 3233760. Its totient is φ = 485028.

The previous prime is 1455127. The next prime is 1455143. The reversal of 1455138 is 8315541.

1455138 is a `hidden beast` number, since 145 + 513 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13420 + ... + 13527.

It is an arithmetic number, because the mean of its divisors is an integer number (202110).

2^1455138 is an apocalyptic number.

1455138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1455138 is an abundant number, since it is smaller than the sum of its proper divisors (1778622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1455138 is a wasteful number, since it uses less digits than its factorization.

1455138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26958 (or 26952 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1455138 is about 1206.2910096656. The cubic root of 1455138 is about 113.3186505392.

The spelling of 1455138 in words is "one million, four hundred fifty-five thousand, one hundred thirty-eight".