631346546 has 8 divisors (see below), whose sum is σ = 952494444. Its totient is φ = 313848400.

The previous prime is 631346543. The next prime is 631346557. The reversal of 631346546 is 645643136.

It can be written as a sum of positive squares in 2 ways, for example, as 441210025 + 190136521 = 21005^2 + 13789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×631346546² = 797196922292260232, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (631346543) 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, 912005 + ... + 912696.

Almost surely, 2^631346546 is an apocalyptic number.

631346546 is a deficient number, since it is larger than the sum of its proper divisors (321147898).

631346546 is a wasteful number, since it uses less digits than its factorization.

631346546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824876.

The product of its digits is 155520, while the sum is 38.

The square root of 631346546 is about 25126.6103165548. The cubic root of 631346546 is about 857.8722168667.

The spelling of 631346546 in words is "six hundred thirty-one million, three hundred forty-six thousand, five hundred forty-six".