1262631 has 16 divisors (see below), whose sum is σ = 1820160. Its totient is φ = 776160.

The previous prime is 1262629. The next prime is 1262633. The reversal of 1262631 is 1362621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1262629) and next prime (1262633).

It is not a de Polignac number, because 1262631 - 2¹ = 1262629 is a prime.

It is a super-2 number, since 2×1262631² = 3188474084322, which contains 22 as substring.

1262631 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1262598 and 1262607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1262633) 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, 1686 + ... + 2316.

It is an arithmetic number, because the mean of its divisors is an integer number (113760).

2^1262631 is an apocalyptic number.

1262631 is a deficient number, since it is larger than the sum of its proper divisors (557529).

1262631 is a wasteful number, since it uses less digits than its factorization.

1262631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686.

The product of its digits is 432, while the sum is 21.

The square root of 1262631 is about 1123.6685454350. The cubic root of 1262631 is about 108.0833547172.

The spelling of 1262631 in words is "one million, two hundred sixty-two thousand, six hundred thirty-one".