1172528090 has 16 divisors (see below), whose sum is σ = 2119771080. Its totient is φ = 466962240.

The previous prime is 1172528083. The next prime is 1172528141. The reversal of 1172528090 is 908252711.

It can be written as a sum of positive squares in 4 ways, for example, as 1167657241 + 4870849 = 34171^2 + 2207^2 .

It is a super-3 number, since 3×1172528090³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1172528090.

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, 253721 + ... + 258300.

Almost surely, 2^1172528090 is an apocalyptic number.

1172528090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1172528090 is a deficient number, since it is larger than the sum of its proper divisors (947242990).

1172528090 is a wasteful number, since it uses less digits than its factorization.

1172528090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512257.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 1172528090 is about 34242.1975054172. The cubic root of 1172528090 is about 1054.4866485670.

The spelling of 1172528090 in words is "one billion, one hundred seventy-two million, five hundred twenty-eight thousand, ninety".