1187261230 has 8 divisors (see below), whose sum is σ = 2137070232. Its totient is φ = 474904488.

The previous prime is 1187261209. The next prime is 1187261237. The reversal of 1187261230 is 321627811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1187261230² = 2819178456522225800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1187261192 and 1187261201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187261237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59363052 + ... + 59363071.

It is an arithmetic number, because the mean of its divisors is an integer number (267133779).

Almost surely, 2^1187261230 is an apocalyptic number.

1187261230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1187261230 is a deficient number, since it is larger than the sum of its proper divisors (949809002).

1187261230 is a wasteful number, since it uses less digits than its factorization.

1187261230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118726130.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1187261230 is about 34456.6572667750. The cubic root of 1187261230 is about 1058.8849167380.

The spelling of 1187261230 in words is "one billion, one hundred eighty-seven million, two hundred sixty-one thousand, two hundred thirty".