1155725770 has 16 divisors (see below), whose sum is σ = 2124569088. Its totient is φ = 452454160.

The previous prime is 1155725761. The next prime is 1155725771. The reversal of 1155725770 is 775275511.

It is not an unprimeable number, because it can be changed into a prime (1155725771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229026 + ... + 1229965.

It is an arithmetic number, because the mean of its divisors is an integer number (132785568).

Almost surely, 2^1155725770 is an apocalyptic number.

1155725770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155725770 is a deficient number, since it is larger than the sum of its proper divisors (968843318).

1155725770 is a wasteful number, since it uses less digits than its factorization.

1155725770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459045.

The product of its (nonzero) digits is 85750, while the sum is 40.

The square root of 1155725770 is about 33995.9669666859. The cubic root of 1155725770 is about 1049.4254664883.

The spelling of 1155725770 in words is "one billion, one hundred fifty-five million, seven hundred twenty-five thousand, seven hundred seventy".