151302640 has 20 divisors (see below), whose sum is σ = 351778824. Its totient is φ = 60521024.

The previous prime is 151302629. The next prime is 151302653. The reversal of 151302640 is 46203151.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 945562 + ... + 945721.

Almost surely, 2^151302640 is an apocalyptic number.

151302640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151302640 is an abundant number, since it is smaller than the sum of its proper divisors (200476184).

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

151302640 is a wasteful number, since it uses less digits than its factorization.

151302640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891296 (or 1891290 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 151302640 is about 12300.5138104065. The cubic root of 151302640 is about 532.8629220148.

Adding to 151302640 its reverse (46203151), we get a palindrome (197505791).

The spelling of 151302640 in words is "one hundred fifty-one million, three hundred two thousand, six hundred forty".