152420687 has 4 divisors (see below), whose sum is σ = 152959560. Its totient is φ = 151881816.

The previous prime is 152420677. The next prime is 152420689. The reversal of 152420687 is 786024251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786024251 = 31 ⋅25355621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152420687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152420689) 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 3 ways as a sum of consecutive naturals, for example, 269012 + ... + 269577.

It is an arithmetic number, because the mean of its divisors is an integer number (38239890).

Almost surely, 2^152420687 is an apocalyptic number.

152420687 is a deficient number, since it is larger than the sum of its proper divisors (538873).

152420687 is an equidigital number, since it uses as much as digits as its factorization.

152420687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538872.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 152420687 is about 12345.8773280800. The cubic root of 152420687 is about 534.1722279216.

The spelling of 152420687 in words is "one hundred fifty-two million, four hundred twenty thousand, six hundred eighty-seven".