1137428 has 6 divisors (see below), whose sum is σ = 1990506. Its totient is φ = 568712.

The previous prime is 1137427. The next prime is 1137439. The reversal of 1137428 is 8247311.

It can be written as a sum of positive squares in only one way, i.e., 743044 + 394384 = 862^2 + 628^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1137397 and 1137406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1137427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142175 + ... + 142182.

It is an arithmetic number, because the mean of its divisors is an integer number (331751).

2^1137428 is an apocalyptic number.

It is an amenable number.

1137428 is a deficient number, since it is larger than the sum of its proper divisors (853078).

1137428 is a wasteful number, since it uses less digits than its factorization.

1137428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284361 (or 284359 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 1137428 is about 1066.5026957303. The cubic root of 1137428 is about 104.3857714152.

The spelling of 1137428 in words is "one million, one hundred thirty-seven thousand, four hundred twenty-eight".