631401083 has 8 divisors (see below), whose sum is σ = 668134656. Its totient is φ = 595441000.

The previous prime is 631401073. The next prime is 631401109. The reversal of 631401083 is 380104136.

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 631401083 - 2²⁸ = 362965627 is a prime.

It is a super-2 number, since 2×631401083² = 797334655227145778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631401073) 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, 191693 + ... + 194958.

It is an arithmetic number, because the mean of its divisors is an integer number (83516832).

Almost surely, 2^631401083 is an apocalyptic number.

631401083 is a deficient number, since it is larger than the sum of its proper divisors (36733573).

631401083 is a wasteful number, since it uses less digits than its factorization.

631401083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386745.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 631401083 is about 25127.6955369966. The cubic root of 631401083 is about 857.8969177384.

The spelling of 631401083 in words is "six hundred thirty-one million, four hundred one thousand, eighty-three".