151540605 has 32 divisors (see below), whose sum is σ = 270124800. Its totient is φ = 80606016.

The previous prime is 151540603. The next prime is 151540607. The reversal of 151540605 is 506045151.

It is a happy number.

151540605 is a `hidden beast` number, since 1 + 5 + 1 + 54 + 0 + 605 = 666.

It is an interprime number because it is at equal distance from previous prime (151540603) and next prime (151540607).

It is not a de Polignac number, because 151540605 - 2¹ = 151540603 is a prime.

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 (151540603) 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 31 ways as a sum of consecutive naturals, for example, 57987 + ... + 60543.

It is an arithmetic number, because the mean of its divisors is an integer number (8441400).

Almost surely, 2^151540605 is an apocalyptic number.

151540605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

151540605 is a deficient number, since it is larger than the sum of its proper divisors (118584195).

151540605 is a wasteful number, since it uses less digits than its factorization.

151540605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010 (or 3004 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 151540605 is about 12310.1829799561. The cubic root of 151540605 is about 533.1421335030.

Adding to 151540605 its reverse (506045151), we get a palindrome (657585756).

The spelling of 151540605 in words is "one hundred fifty-one million, five hundred forty thousand, six hundred five".