1126531830 has 16 divisors (see below), whose sum is σ = 2703676464. Its totient is φ = 300408480.

The previous prime is 1126531817. The next prime is 1126531849. The reversal of 1126531830 is 381356211.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 37551061 = 1126531830 / (1 + 1 + 2 + 6 + 5 + 3 + 1 + 8 + 3 + 0).

It is a congruent number.

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, 18775501 + ... + 18775560.

It is an arithmetic number, because the mean of its divisors is an integer number (168979779).

Almost surely, 2^1126531830 is an apocalyptic number.

1126531830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1126531830 is an abundant number, since it is smaller than the sum of its proper divisors (1577144634).

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

1126531830 is a wasteful number, since it uses less digits than its factorization.

1126531830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37551071.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1126531830 is about 33563.8470679390. The cubic root of 1126531830 is about 1040.5137470365.

The spelling of 1126531830 in words is "one billion, one hundred twenty-six million, five hundred thirty-one thousand, eight hundred thirty".