151530240 has 72 divisors (see below), whose sum is σ = 483961968. Its totient is φ = 40407040.

The previous prime is 151530229. The next prime is 151530251. The reversal of 151530240 is 42035151.

It is an interprime number because it is at equal distance from previous prime (151530229) and next prime (151530251).

It is a super-2 number, since 2×151530240² = 45922827268915200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15891 + ... + 23570.

It is an arithmetic number, because the mean of its divisors is an integer number (6721694).

Almost surely, 2^151530240 is an apocalyptic number.

151530240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151530240 is an abundant number, since it is smaller than the sum of its proper divisors (332431728).

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

151530240 is an equidigital number, since it uses as much as digits as its factorization.

151530240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39485 (or 39471 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 151530240 is about 12309.7619798272. The cubic root of 151530240 is about 533.1299780278.

Adding to 151530240 its reverse (42035151), we get a palindrome (193565391).

The spelling of 151530240 in words is "one hundred fifty-one million, five hundred thirty thousand, two hundred forty".