19113457 has 16 divisors (see below), whose sum is σ = 22600512. Its totient is φ = 15966720.

The previous prime is 19113439. The next prime is 19113461. The reversal of 19113457 is 75431191.

It is not a de Polignac number, because 19113457 - 2¹¹ = 19111409 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (19113427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6853 + ... + 9229.

It is an arithmetic number, because the mean of its divisors is an integer number (1412532).

Almost surely, 2^19113457 is an apocalyptic number.

19113457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

19113457 is a deficient number, since it is larger than the sum of its proper divisors (3487055).

19113457 is a wasteful number, since it uses less digits than its factorization.

19113457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448.

The product of its digits is 3780, while the sum is 31.

The square root of 19113457 is about 4371.8939831611. The cubic root of 19113457 is about 267.3702494748.

It can be divided in two parts, 191134 and 57, that added together give a palindrome (191191).

The spelling of 19113457 in words is "nineteen million, one hundred thirteen thousand, four hundred fifty-seven".