1151514220 has 24 divisors (see below), whose sum is σ = 2496187008. Its totient is φ = 445747200.

The previous prime is 1151514211. The next prime is 1151514239. The reversal of 1151514220 is 224151511.

It is a junction number, because it is equal to n+sod(n) for n = 1151514191 and 1151514200.

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, 928021 + ... + 929260.

It is an arithmetic number, because the mean of its divisors is an integer number (104007792).

Almost surely, 2^1151514220 is an apocalyptic number.

1151514220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151514220 is an abundant number, since it is smaller than the sum of its proper divisors (1344672788).

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

1151514220 is a wasteful number, since it uses less digits than its factorization.

1151514220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857321 (or 1857319 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1151514220 is about 33933.9685271263. The cubic root of 1151514220 is about 1048.1491869954.

Adding to 1151514220 its reverse (224151511), we get a palindrome (1375665731).

The spelling of 1151514220 in words is "one billion, one hundred fifty-one million, five hundred fourteen thousand, two hundred twenty".