101987051 has 2 divisors, whose sum is σ = 101987052. Its totient is φ = 101987050.

The previous prime is 101987033. The next prime is 101987077. The reversal of 101987051 is 150789101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101987051 - 2¹⁴ = 101970667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101986999 and 101987017.

It is not a weakly prime, because it can be changed into another prime (101987021) 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 as a sum of consecutive naturals, namely, 50993525 + 50993526.

It is an arithmetic number, because the mean of its divisors is an integer number (50993526).

Almost surely, 2^101987051 is an apocalyptic number.

101987051 is a deficient number, since it is larger than the sum of its proper divisors (1).

101987051 is an equidigital number, since it uses as much as digits as its factorization.

101987051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 101987051 is about 10098.8638469879. The cubic root of 101987051 is about 467.2131001084.

The spelling of 101987051 in words is "one hundred one million, nine hundred eighty-seven thousand, fifty-one".