1242586101 has 4 divisors (see below), whose sum is σ = 1656781472. Its totient is φ = 828390732.

The previous prime is 1242586099. The next prime is 1242586159. The reversal of 1242586101 is 1016852421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1242586101 - 2¹ = 1242586099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242588101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207097681 + ... + 207097686.

It is an arithmetic number, because the mean of its divisors is an integer number (414195368).

Almost surely, 2^1242586101 is an apocalyptic number.

It is an amenable number.

1242586101 is a deficient number, since it is larger than the sum of its proper divisors (414195371).

1242586101 is an equidigital number, since it uses as much as digits as its factorization.

1242586101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414195370.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1242586101 is about 35250.3347643678. The cubic root of 1242586101 is about 1075.0834190899.

The spelling of 1242586101 in words is "one billion, two hundred forty-two million, five hundred eighty-six thousand, one hundred one".