19102061 has 8 divisors (see below), whose sum is σ = 20870784. Its totient is φ = 17338720.

The previous prime is 19102051. The next prime is 19102073. The reversal of 19102061 is 16020191.

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

It is a cyclic number.

It is not a de Polignac number, because 19102061 - 2⁶ = 19101997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19102001) 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, 11276 + ... + 12858.

It is an arithmetic number, because the mean of its divisors is an integer number (2608848).

Almost surely, 2^19102061 is an apocalyptic number.

19102061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19102061 is a deficient number, since it is larger than the sum of its proper divisors (1768723).

19102061 is a wasteful number, since it uses less digits than its factorization.

19102061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 19102061 is about 4370.5904635415. The cubic root of 19102061 is about 267.3171009326.

The spelling of 19102061 in words is "nineteen million, one hundred two thousand, sixty-one".