1241425989 has 36 divisors (see below), whose sum is σ = 1884093120. Its totient is φ = 787599120.

The previous prime is 1241425963. The next prime is 1241426041. The reversal of 1241425989 is 9895241421.

It is a happy number.

1241425989 is a `hidden beast` number, since 12 + 4 + 1 + 42 + 598 + 9 = 666.

It is not a de Polignac number, because 1241425989 - 2⁸ = 1241425733 is a prime.

It is a super-2 number, since 2×1241425989² = 3082276972329256242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241425919) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1137334 + ... + 1138424.

It is an arithmetic number, because the mean of its divisors is an integer number (52335920).

Almost surely, 2^1241425989 is an apocalyptic number.

It is an amenable number.

1241425989 is a deficient number, since it is larger than the sum of its proper divisors (642667131).

1241425989 is a wasteful number, since it uses less digits than its factorization.

1241425989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 1356 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 1241425989 is about 35233.8755887001. The cubic root of 1241425989 is about 1074.7487392581.

The spelling of 1241425989 in words is "one billion, two hundred forty-one million, four hundred twenty-five thousand, nine hundred eighty-nine".