1242835077 has 8 divisors (see below), whose sum is σ = 1807760160. Its totient is φ = 753233360.

The previous prime is 1242835057. The next prime is 1242835117. The reversal of 1242835077 is 7705382421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1242835077 - 2²⁰ = 1241786501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242835007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18830802 + ... + 18830867.

It is an arithmetic number, because the mean of its divisors is an integer number (225970020).

Almost surely, 2^1242835077 is an apocalyptic number.

It is an amenable number.

1242835077 is a deficient number, since it is larger than the sum of its proper divisors (564925083).

1242835077 is a wasteful number, since it uses less digits than its factorization.

1242835077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37661683.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 1242835077 is about 35253.8661284121. The cubic root of 1242835077 is about 1075.1552188345.

The spelling of 1242835077 in words is "one billion, two hundred forty-two million, eight hundred thirty-five thousand, seventy-seven".