531971541 has 6 divisors (see below), whose sum is σ = 768403350. Its totient is φ = 354647688.

The previous prime is 531971483. The next prime is 531971567. The reversal of 531971541 is 145179135.

It is a happy number.

531971541 is a `hidden beast` number, since 531 + 9 + 71 + 54 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 382007025 + 149964516 = 19545^2 + 12246^2 .

It is not a de Polignac number, because 531971541 - 2⁶ = 531971477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 531971496 and 531971505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531971581) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29553966 + ... + 29553983.

It is an arithmetic number, because the mean of its divisors is an integer number (128067225).

Almost surely, 2^531971541 is an apocalyptic number.

It is an amenable number.

531971541 is a deficient number, since it is larger than the sum of its proper divisors (236431809).

531971541 is a wasteful number, since it uses less digits than its factorization.

531971541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59107955 (or 59107952 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 531971541 is about 23064.5082540253. The cubic root of 531971541 is about 810.2694531069.

The spelling of 531971541 in words is "five hundred thirty-one million, nine hundred seventy-one thousand, five hundred forty-one".