1045126631 has 4 divisors (see below), whose sum is σ = 1045346064. Its totient is φ = 1044907200.

The previous prime is 1045126627. The next prime is 1045126651. The reversal of 1045126631 is 1366215401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1366215401 = 32299 ⋅42299.

It is a cyclic number.

It is not a de Polignac number, because 1045126631 - 2² = 1045126627 is a prime.

It is a super-2 number, since 2×1045126631² = 2184579349650820322, 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 = 1045126594 and 1045126603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045126651) 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, 102410 + ... + 112151.

It is an arithmetic number, because the mean of its divisors is an integer number (261336516).

Almost surely, 2^1045126631 is an apocalyptic number.

1045126631 is a deficient number, since it is larger than the sum of its proper divisors (219433).

1045126631 is an equidigital number, since it uses as much as digits as its factorization.

1045126631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219432.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1045126631 is about 32328.4183188723. The cubic root of 1045126631 is about 1014.8214496608.

The spelling of 1045126631 in words is "one billion, forty-five million, one hundred twenty-six thousand, six hundred thirty-one".