101550047 has 4 divisors (see below), whose sum is σ = 103911720. Its totient is φ = 99188376.

The previous prime is 101550023. The next prime is 101550077. The reversal of 101550047 is 740055101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101550047 - 2⁶ = 101549983 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 (101550077) 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, 1180772 + ... + 1180857.

It is an arithmetic number, because the mean of its divisors is an integer number (25977930).

Almost surely, 2^101550047 is an apocalyptic number.

101550047 is a deficient number, since it is larger than the sum of its proper divisors (2361673).

101550047 is an equidigital number, since it uses as much as digits as its factorization.

101550047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361672.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 101550047 is about 10077.2043246131. The cubic root of 101550047 is about 466.5448247103.

The spelling of 101550047 in words is "one hundred one million, five hundred fifty thousand, forty-seven".