2120157487 has 8 divisors (see below), whose sum is σ = 2501199872. Its totient is φ = 1758655800.

The previous prime is 2120157467. The next prime is 2120157497. The reversal of 2120157487 is 7847510212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2120157487 - 2²⁷ = 1985939759 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 (2120157407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4884939 + ... + 4885372.

It is an arithmetic number, because the mean of its divisors is an integer number (312649984).

Almost surely, 2^2120157487 is an apocalyptic number.

2120157487 is a deficient number, since it is larger than the sum of its proper divisors (381042385).

2120157487 is an equidigital number, since it uses as much as digits as its factorization.

2120157487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9770349.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 2120157487 is about 46045.1679006603. The cubic root of 2120157487 is about 1284.6634671113.

Adding to 2120157487 its reverse (7847510212), we get a palindrome (9967667699).

The spelling of 2120157487 in words is "two billion, one hundred twenty million, one hundred fifty-seven thousand, four hundred eighty-seven".