241997551 has 8 divisors (see below), whose sum is σ = 243264560. Its totient is φ = 240734592.

The previous prime is 241997537. The next prime is 241997557. The reversal of 241997551 is 155799142.

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 241997551 - 2⁵ = 241997519 is a prime.

It is a Duffinian number.

Its product of digits (113400) is a multiple of the sum of its prime divisors (2025).

It is a junction number, because it is equal to n+sod(n) for n = 241997498 and 241997507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241997557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239335 + ... + 240343.

It is an arithmetic number, because the mean of its divisors is an integer number (30408070).

Almost surely, 2^241997551 is an apocalyptic number.

241997551 is a deficient number, since it is larger than the sum of its proper divisors (1267009).

241997551 is a wasteful number, since it uses less digits than its factorization.

241997551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025.

The product of its digits is 113400, while the sum is 43.

The square root of 241997551 is about 15556.2704720637. The cubic root of 241997551 is about 623.1658663109.

The spelling of 241997551 in words is "two hundred forty-one million, nine hundred ninety-seven thousand, five hundred fifty-one".