151326405 has 12 divisors (see below), whose sum is σ = 262299180. Its totient is φ = 80707392.

The previous prime is 151326403. The next prime is 151326419. The reversal of 151326405 is 504623151.

151326405 is a `hidden beast` number, since 1 + 5 + 13 + 2 + 640 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41139396 + 110187009 = 6414^2 + 10497^2 .

It is not a de Polignac number, because 151326405 - 2¹ = 151326403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151326403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1681360 + ... + 1681449.

It is an arithmetic number, because the mean of its divisors is an integer number (21858265).

Almost surely, 2^151326405 is an apocalyptic number.

151326405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

151326405 is a deficient number, since it is larger than the sum of its proper divisors (110972775).

151326405 is a wasteful number, since it uses less digits than its factorization.

151326405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362820 (or 3362817 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 151326405 is about 12301.4797890335. The cubic root of 151326405 is about 532.8908193566.

Adding to 151326405 its reverse (504623151), we get a palindrome (655949556).

The spelling of 151326405 in words is "one hundred fifty-one million, three hundred twenty-six thousand, four hundred five".