19139152 has 40 divisors (see below), whose sum is σ = 39140352. Its totient is φ = 9052800.

The previous prime is 19139143. The next prime is 19139173. The reversal of 19139152 is 25193191.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22902 + ... + 23722.

Almost surely, 2^19139152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19139152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19570176).

19139152 is an abundant number, since it is smaller than the sum of its proper divisors (20001200).

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

19139152 is a wasteful number, since it uses less digits than its factorization.

19139152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 901 counting only the distinct ones).

The product of its digits is 2430, while the sum is 31.

The square root of 19139152 is about 4374.8316539040. The cubic root of 19139152 is about 267.4900080700.

It can be divided in two parts, 19139 and 152, that added together give a palindrome (19291).

The spelling of 19139152 in words is "nineteen million, one hundred thirty-nine thousand, one hundred fifty-two".