101887946 has 4 divisors (see below), whose sum is σ = 152831922. Its totient is φ = 50943972.

The previous prime is 101887943. The next prime is 101887957. The reversal of 101887946 is 649788101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649788101 = 2237 ⋅290473.

It can be written as a sum of positive squares in only one way, i.e., 101223721 + 664225 = 10061^2 + 815^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101887897 and 101887906.

It is not an unprimeable number, because it can be changed into a prime (101887943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25471985 + ... + 25471988.

Almost surely, 2^101887946 is an apocalyptic number.

101887946 is a deficient number, since it is larger than the sum of its proper divisors (50943976).

101887946 is an equidigital number, since it uses as much as digits as its factorization.

101887946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50943975.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 101887946 is about 10093.9559143083. The cubic root of 101887946 is about 467.0617143518.

The spelling of 101887946 in words is "one hundred one million, eight hundred eighty-seven thousand, nine hundred forty-six".