1000153231 has 16 divisors (see below), whose sum is σ = 1320295680. Its totient is φ = 733495680.

The previous prime is 1000153223. The next prime is 1000153243. The reversal of 1000153231 is 1323510001.

It is a cyclic number.

It is not a de Polignac number, because 1000153231 - 2³ = 1000153223 is a prime.

It is a super-2 number, since 2×1000153231² = 2000612970959478722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000156231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380721 + ... + 383338.

It is an arithmetic number, because the mean of its divisors is an integer number (82518480).

Almost surely, 2^1000153231 is an apocalyptic number.

1000153231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1000153231 is a deficient number, since it is larger than the sum of its proper divisors (320142449).

1000153231 is a wasteful number, since it uses less digits than its factorization.

1000153231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764094.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1000153231 is about 31625.1993037198. The cubic root of 1000153231 is about 1000.0510743914.

Adding to 1000153231 its reverse (1323510001), we get a palindrome (2323663232).

The spelling of 1000153231 in words is "one billion, one hundred fifty-three thousand, two hundred thirty-one".