146971087 has 4 divisors (see below), whose sum is σ = 147122496. Its totient is φ = 146819680.

The previous prime is 146971073. The next prime is 146971147. The reversal of 146971087 is 780179641.

146971087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780179641 = 277 ⋅2816533.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146971087 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 (146971007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74239 + ... + 76192.

It is an arithmetic number, because the mean of its divisors is an integer number (36780624).

Almost surely, 2^146971087 is an apocalyptic number.

146971087 is a deficient number, since it is larger than the sum of its proper divisors (151409).

146971087 is an equidigital number, since it uses as much as digits as its factorization.

146971087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151408.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 146971087 is about 12123.1632423225. The cubic root of 146971087 is about 527.7286051210.

The spelling of 146971087 in words is "one hundred forty-six million, nine hundred seventy-one thousand, eighty-seven".