1831445146 has 16 divisors (see below), whose sum is σ = 2812343040. Its totient is φ = 894090960.

The previous prime is 1831445117. The next prime is 1831445153. The reversal of 1831445146 is 6415441381.

It is a super-2 number, since 2×1831445146² = 6708382645613922632, which contains 22 as substring.

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, 16435 + ... + 62713.

It is an arithmetic number, because the mean of its divisors is an integer number (175771440).

Almost surely, 2^1831445146 is an apocalyptic number.

1831445146 is a deficient number, since it is larger than the sum of its proper divisors (980897894).

1831445146 is a wasteful number, since it uses less digits than its factorization.

1831445146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46749.

The product of its digits is 46080, while the sum is 37.

The square root of 1831445146 is about 42795.3869710276. The cubic root of 1831445146 is about 1223.4830916619.

The spelling of 1831445146 in words is "one billion, eight hundred thirty-one million, four hundred forty-five thousand, one hundred forty-six".