156428487 has 12 divisors (see below), whose sum is σ = 226078944. Its totient is φ = 104227200.

The previous prime is 156428483. The next prime is 156428491. The reversal of 156428487 is 784824651.

156428487 is a `hidden beast` number, since 1 + 564 + 2 + 8 + 4 + 87 = 666.

156428487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (156428483) and next prime (156428491).

It is not a de Polignac number, because 156428487 - 2² = 156428483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156428483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17463 + ... + 24855.

It is an arithmetic number, because the mean of its divisors is an integer number (18839912).

Almost surely, 2^156428487 is an apocalyptic number.

156428487 is a deficient number, since it is larger than the sum of its proper divisors (69650457).

156428487 is a wasteful number, since it uses less digits than its factorization.

156428487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9750 (or 9747 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 156428487 is about 12507.1374422767. The cubic root of 156428487 is about 538.8136817110.

The spelling of 156428487 in words is "one hundred fifty-six million, four hundred twenty-eight thousand, four hundred eighty-seven".