1081540652 has 24 divisors (see below), whose sum is σ = 1930521600. Its totient is φ = 530062416.

The previous prime is 1081540639. The next prime is 1081540717. The reversal of 1081540652 is 2560451801.

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, 31613 + ... + 56235.

It is an arithmetic number, because the mean of its divisors is an integer number (80438400).

Almost surely, 2^1081540652 is an apocalyptic number.

It is an amenable number.

1081540652 is a deficient number, since it is larger than the sum of its proper divisors (848980948).

1081540652 is a wasteful number, since it uses less digits than its factorization.

1081540652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24845 (or 24843 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 1081540652 is about 32886.7853704189. The cubic root of 1081540652 is about 1026.4732024752.

The spelling of 1081540652 in words is "one billion, eighty-one million, five hundred forty thousand, six hundred fifty-two".