1151575620 has 48 divisors (see below), whose sum is σ = 3472445760. Its totient is φ = 283464576.

The previous prime is 1151575613. The next prime is 1151575627. The reversal of 1151575620 is 265751511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1151575613) and next prime (1151575627).

It is a super-2 number, since 2×1151575620² = 2652252817156768800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1151575627) 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, 737410 + ... + 738969.

It is an arithmetic number, because the mean of its divisors is an integer number (72342620).

Almost surely, 2^1151575620 is an apocalyptic number.

1151575620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151575620 is an abundant number, since it is smaller than the sum of its proper divisors (2320870140).

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

1151575620 is a wasteful number, since it uses less digits than its factorization.

1151575620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476404 (or 1476402 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 33.

The square root of 1151575620 is about 33934.8732132595. The cubic root of 1151575620 is about 1048.1678161520.

The spelling of 1151575620 in words is "one billion, one hundred fifty-one million, five hundred seventy-five thousand, six hundred twenty".