1551442134 has 64 divisors (see below), whose sum is σ = 3592512000. Its totient is φ = 441438720.

The previous prime is 1551442127. The next prime is 1551442147. The reversal of 1551442134 is 4312441551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562992 + ... + 565740.

It is an arithmetic number, because the mean of its divisors is an integer number (56133000).

Almost surely, 2^1551442134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1551442134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1796256000).

1551442134 is an abundant number, since it is smaller than the sum of its proper divisors (2041069866).

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

1551442134 is a wasteful number, since it uses less digits than its factorization.

1551442134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285.

The product of its digits is 9600, while the sum is 30.

The square root of 1551442134 is about 39388.3502320166. The cubic root of 1551442134 is about 1157.6533351003.

Adding to 1551442134 its reverse (4312441551), we get a palindrome (5863883685).

The spelling of 1551442134 in words is "one billion, five hundred fifty-one million, four hundred forty-two thousand, one hundred thirty-four".