122903649 has 40 divisors (see below), whose sum is σ = 201421440. Its totient is φ = 74066400.

The previous prime is 122903639. The next prime is 122903701. The reversal of 122903649 is 946309221.

122903649 is a `hidden beast` number, since 1 + 2 + 2 + 9 + 0 + 3 + 649 = 666.

It is not a de Polignac number, because 122903649 - 2⁴ = 122903633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122903629) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 241207 + ... + 241715.

It is an arithmetic number, because the mean of its divisors is an integer number (5035536).

Almost surely, 2^122903649 is an apocalyptic number.

It is an amenable number.

122903649 is a deficient number, since it is larger than the sum of its proper divisors (78517791).

122903649 is a wasteful number, since it uses less digits than its factorization.

122903649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 122903649 is about 11086.1918168504. The cubic root of 122903649 is about 497.1890925446.

The spelling of 122903649 in words is "one hundred twenty-two million, nine hundred three thousand, six hundred forty-nine".