151630646 has 4 divisors (see below), whose sum is σ = 227445972. Its totient is φ = 75815322.

The previous prime is 151630613. The next prime is 151630673. The reversal of 151630646 is 646036151.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 37907660 + ... + 37907663.

It is an arithmetic number, because the mean of its divisors is an integer number (56861493).

Almost surely, 2^151630646 is an apocalyptic number.

151630646 is a deficient number, since it is larger than the sum of its proper divisors (75815326).

151630646 is an equidigital number, since it uses as much as digits as its factorization.

151630646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75815325.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 151630646 is about 12313.8396124036. The cubic root of 151630646 is about 533.2477050897.

Adding to 151630646 its reverse (646036151), we get a palindrome (797666797).

The spelling of 151630646 in words is "one hundred fifty-one million, six hundred thirty thousand, six hundred forty-six".