1236961148 has 12 divisors (see below), whose sum is σ = 2195170992. Its totient is φ = 609769440.

The previous prime is 1236961147. The next prime is 1236961189. The reversal of 1236961148 is 8411696321.

It is a super-2 number, since 2×1236961148² = 3060145763322955808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1236961147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2177465 + ... + 2178032.

It is an arithmetic number, because the mean of its divisors is an integer number (182930916).

Almost surely, 2^1236961148 is an apocalyptic number.

It is an amenable number.

1236961148 is a deficient number, since it is larger than the sum of its proper divisors (958209844).

1236961148 is a wasteful number, since it uses less digits than its factorization.

1236961148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4355572 (or 4355570 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 1236961148 is about 35170.4584559258. The cubic root of 1236961148 is about 1073.4587317537.

The spelling of 1236961148 in words is "one billion, two hundred thirty-six million, nine hundred sixty-one thousand, one hundred forty-eight".