1156231450 has 96 divisors (see below), whose sum is σ = 2463592320. Its totient is φ = 399840000.

The previous prime is 1156231441. The next prime is 1156231457. The reversal of 1156231450 is 541326511.

It is not an unprimeable number, because it can be changed into a prime (1156231457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1131940 + ... + 1132960.

It is an arithmetic number, because the mean of its divisors is an integer number (25662420).

Almost surely, 2^1156231450 is an apocalyptic number.

1156231450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1156231450 is an abundant number, since it is smaller than the sum of its proper divisors (1307360870).

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

1156231450 is a wasteful number, since it uses less digits than its factorization.

1156231450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1156231450 is about 34003.4035061198. The cubic root of 1156231450 is about 1049.5785005110.

Adding to 1156231450 its reverse (541326511), we get a palindrome (1697557961).

The spelling of 1156231450 in words is "one billion, one hundred fifty-six million, two hundred thirty-one thousand, four hundred fifty".