1152562540 has 48 divisors (see below), whose sum is σ = 2484000288. Its totient is φ = 448971264.

The previous prime is 1152562517. The next prime is 1152562577. The reversal of 1152562540 is 452652511.

It is a super-2 number, since 2×1152562540² = 2656800817222503200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318984 + ... + 322576.

It is an arithmetic number, because the mean of its divisors is an integer number (51750006).

Almost surely, 2^1152562540 is an apocalyptic number.

1152562540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1152562540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1242000144).

1152562540 is an abundant number, since it is smaller than the sum of its proper divisors (1331437748).

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

1152562540 is a wasteful number, since it uses less digits than its factorization.

1152562540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018 (or 4016 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1152562540 is about 33949.4114823807. The cubic root of 1152562540 is about 1048.4671632343.

The spelling of 1152562540 in words is "one billion, one hundred fifty-two million, five hundred sixty-two thousand, five hundred forty".