19149102 has 48 divisors (see below), whose sum is σ = 49507920. Its totient is φ = 5470416.

The previous prime is 19149083. The next prime is 19149113. The reversal of 19149102 is 20194191.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 973 + ... + 6264.

It is an arithmetic number, because the mean of its divisors is an integer number (1031415).

Almost surely, 2^19149102 is an apocalyptic number.

19149102 is an abundant number, since it is smaller than the sum of its proper divisors (30358818).

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

19149102 is a wasteful number, since it uses less digits than its factorization.

19149102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7262 (or 7249 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 19149102 is about 4375.9686927582. The cubic root of 19149102 is about 267.5363539843.

The spelling of 19149102 in words is "nineteen million, one hundred forty-nine thousand, one hundred two".