1242518941 has 8 divisors (see below), whose sum is σ = 1279162080. Its totient is φ = 1206037008.

The previous prime is 1242518923. The next prime is 1242518971. The reversal of 1242518941 is 1498152421.

It is the 14391-st star number.

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

It is a cyclic number.

It is not a de Polignac number, because 1242518941 - 2²³ = 1234130333 is a prime.

It is a super-2 number, since 2×1242518941² = 3087706637487522962, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242518941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242518971) 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, 24571 + ... + 55576.

It is an arithmetic number, because the mean of its divisors is an integer number (159895260).

Almost surely, 2^1242518941 is an apocalyptic number.

It is an amenable number.

1242518941 is a deficient number, since it is larger than the sum of its proper divisors (36643139).

1242518941 is an equidigital number, since it uses as much as digits as its factorization.

1242518941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80603.

The product of its digits is 23040, while the sum is 37.

The square root of 1242518941 is about 35249.3821364290. The cubic root of 1242518941 is about 1075.0640498344.

The spelling of 1242518941 in words is "one billion, two hundred forty-two million, five hundred eighteen thousand, nine hundred forty-one".