611355138 has 8 divisors (see below), whose sum is σ = 1222710288. Its totient is φ = 203785044.

The previous prime is 611355137. The next prime is 611355197. The reversal of 611355138 is 831553116.

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

611355138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 611355099 and 611355108.

It is not an unprimeable number, because it can be changed into a prime (611355131) 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, 50946256 + ... + 50946267.

It is an arithmetic number, because the mean of its divisors is an integer number (152838786).

Almost surely, 2^611355138 is an apocalyptic number.

611355138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611355138 is a wasteful number, since it uses less digits than its factorization.

611355138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101892528.

The product of its digits is 10800, while the sum is 33.

The square root of 611355138 is about 24725.5968178728. The cubic root of 611355138 is about 848.7201675988.

The spelling of 611355138 in words is "six hundred eleven million, three hundred fifty-five thousand, one hundred thirty-eight".