631546465 has 16 divisors (see below), whose sum is σ = 827413056. Its totient is φ = 458939200.

The previous prime is 631546441. The next prime is 631546469. The reversal of 631546465 is 564645136.

It is not a de Polignac number, because 631546465 - 2¹³ = 631538273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631546469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78270 + ... + 85960.

It is an arithmetic number, because the mean of its divisors is an integer number (51713316).

Almost surely, 2^631546465 is an apocalyptic number.

It is an amenable number.

631546465 is a deficient number, since it is larger than the sum of its proper divisors (195866591).

631546465 is a wasteful number, since it uses less digits than its factorization.

631546465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9200.

The product of its digits is 259200, while the sum is 40.

The square root of 631546465 is about 25130.5882342614. The cubic root of 631546465 is about 857.9627571347.

The spelling of 631546465 in words is "six hundred thirty-one million, five hundred forty-six thousand, four hundred sixty-five".