151138404 has 72 divisors (see below), whose sum is σ = 393257592. Its totient is φ = 48921600.

The previous prime is 151138387. The next prime is 151138411. The reversal of 151138404 is 404831151.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21178404 + 129960000 = 4602^2 + 11400^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215254 + ... + 215954.

It is an arithmetic number, because the mean of its divisors is an integer number (5461911).

Almost surely, 2^151138404 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 151138404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196628796).

151138404 is an abundant number, since it is smaller than the sum of its proper divisors (242119188).

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

151138404 is a wasteful number, since it uses less digits than its factorization.

151138404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 872 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 151138404 is about 12293.8360164759. The cubic root of 151138404 is about 532.6700481840.

Adding to 151138404 its reverse (404831151), we get a palindrome (555969555).

The spelling of 151138404 in words is "one hundred fifty-one million, one hundred thirty-eight thousand, four hundred four".