1406053631 has 8 divisors (see below), whose sum is σ = 1442136528. Its totient is φ = 1370056000.

The previous prime is 1406053601. The next prime is 1406053669. The reversal of 1406053631 is 1363506041.

It is a happy number.

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

It is not a de Polignac number, because 1406053631 - 2³⁰ = 332311807 is a prime.

It is a super-2 number, since 2×1406053631² = 3953973626496568322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1406053594 and 1406053603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406053601) 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, 12776 + ... + 54546.

It is an arithmetic number, because the mean of its divisors is an integer number (180267066).

Almost surely, 2^1406053631 is an apocalyptic number.

1406053631 is a deficient number, since it is larger than the sum of its proper divisors (36082897).

1406053631 is an equidigital number, since it uses as much as digits as its factorization.

1406053631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42633.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1406053631 is about 37497.3816552569. The cubic root of 1406053631 is about 1120.2990355321.

Adding to 1406053631 its reverse (1363506041), we get a palindrome (2769559672).

The spelling of 1406053631 in words is "one billion, four hundred six million, fifty-three thousand, six hundred thirty-one".