1355149187 has 8 divisors (see below), whose sum is σ = 1549136736. Its totient is φ = 1161260352.

The previous prime is 1355149183. The next prime is 1355149199. The reversal of 1355149187 is 7819415531.

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

It is not a de Polignac number, because 1355149187 - 2² = 1355149183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1355149183) 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, 7553 + ... + 52605.

It is an arithmetic number, because the mean of its divisors is an integer number (193642092).

Almost surely, 2^1355149187 is an apocalyptic number.

1355149187 is a deficient number, since it is larger than the sum of its proper divisors (193987549).

1355149187 is an equidigital number, since it uses as much as digits as its factorization.

1355149187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49357.

The product of its digits is 151200, while the sum is 44.

The square root of 1355149187 is about 36812.3510115831. The cubic root of 1355149187 is about 1106.6128347652.

The spelling of 1355149187 in words is "one billion, three hundred fifty-five million, one hundred forty-nine thousand, one hundred eighty-seven".