19121348 has 6 divisors (see below), whose sum is σ = 33462366. Its totient is φ = 9560672.

The previous prime is 19121329. The next prime is 19121351. The reversal of 19121348 is 84312191.

It can be written as a sum of positive squares in only one way, i.e., 16662724 + 2458624 = 4082^2 + 1568^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19121348.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2390165 + ... + 2390172.

It is an arithmetic number, because the mean of its divisors is an integer number (5577061).

Almost surely, 2^19121348 is an apocalyptic number.

It is an amenable number.

19121348 is a deficient number, since it is larger than the sum of its proper divisors (14341018).

19121348 is a wasteful number, since it uses less digits than its factorization.

19121348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780341 (or 4780339 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 19121348 is about 4372.7963593106. The cubic root of 19121348 is about 267.4070390581.

The spelling of 19121348 in words is "nineteen million, one hundred twenty-one thousand, three hundred forty-eight".