5151438 has 20 divisors (see below), whose sum is σ = 11543400. Its totient is φ = 1717092.

The previous prime is 5151437. The next prime is 5151457. The reversal of 5151438 is 8341515.

5151438 is a `hidden beast` number, since 515 + 143 + 8 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5151431) 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 9 ways as a sum of consecutive naturals, for example, 15738 + ... + 16061.

It is an arithmetic number, because the mean of its divisors is an integer number (577170).

Almost surely, 2^5151438 is an apocalyptic number.

5151438 is an abundant number, since it is smaller than the sum of its proper divisors (6391962).

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

5151438 is a wasteful number, since it uses less digits than its factorization.

5151438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31813 (or 31804 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 5151438 is about 2269.6779507234. The cubic root of 5151438 is about 172.7068218715.

It can be divided in two parts, 515 and 1438, that added together give a triangular number (1953 = T₆₂).

The spelling of 5151438 in words is "five million, one hundred fifty-one thousand, four hundred thirty-eight".