1236145026 has 32 divisors (see below), whose sum is σ = 2606358528. Its totient is φ = 390269520.

The previous prime is 1236145013. The next prime is 1236145063. The reversal of 1236145026 is 6205416321.

It is a junction number, because it is equal to n+sod(n) for n = 1236144984 and 1236145002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61960 + ... + 79443.

It is an arithmetic number, because the mean of its divisors is an integer number (81448704).

Almost surely, 2^1236145026 is an apocalyptic number.

1236145026 is an abundant number, since it is smaller than the sum of its proper divisors (1370213502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1236145026 is a wasteful number, since it uses less digits than its factorization.

1236145026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141486.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1236145026 is about 35158.8541622164. The cubic root of 1236145026 is about 1073.2225976787. Note that the first 3 decimals are identical.

The spelling of 1236145026 in words is "one billion, two hundred thirty-six million, one hundred forty-five thousand, twenty-six".