1262631000145 has 16 divisors (see below), whose sum is σ = 1581274852560. Its totient is φ = 966642847744.

The previous prime is 1262631000121. The next prime is 1262631000199. The reversal of 1262631000145 is 5410001362621.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 25037049361 + 1237593950784 = 158231^2 + 1112472^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262631000145 - 2³¹ = 1260483516497 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38513704 + ... + 38546473.

It is an arithmetic number, because the mean of its divisors is an integer number (98829678285).

Almost surely, 2^{1262631000145} is an apocalyptic number.

It is an amenable number.

1262631000145 is a deficient number, since it is larger than the sum of its proper divisors (318643852415).

1262631000145 is a wasteful number, since it uses less digits than its factorization.

1262631000145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77060324.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 1262631000145 its reverse (5410001362621), we get a palindrome (6672632362766).

The spelling of 1262631000145 in words is "one trillion, two hundred sixty-two billion, six hundred thirty-one million, one hundred forty-five", and thus it is an aban number.