151534640 has 40 divisors (see below), whose sum is σ = 356792640. Its totient is φ = 59844096.

The previous prime is 151534609. The next prime is 151534681. The reversal of 151534640 is 46435151.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5669 + ... + 18308.

It is an arithmetic number, because the mean of its divisors is an integer number (8919816).

Almost surely, 2^151534640 is an apocalyptic number.

151534640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151534640 is an abundant number, since it is smaller than the sum of its proper divisors (205258000).

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

151534640 is a wasteful number, since it uses less digits than its factorization.

151534640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24069 (or 24063 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 151534640 is about 12309.9406984762. The cubic root of 151534640 is about 533.1351381622.

Adding to 151534640 its reverse (46435151), we get a palindrome (197969791).

The spelling of 151534640 in words is "one hundred fifty-one million, five hundred thirty-four thousand, six hundred forty".