1241392985 has 16 divisors (see below), whose sum is σ = 1757402112. Its totient is φ = 823780800.

The previous prime is 1241392967. The next prime is 1241393003. The reversal of 1241392985 is 5892931421.

It is an interprime number because it is at equal distance from previous prime (1241392967) and next prime (1241393003).

It is not a de Polignac number, because 1241392985 - 2⁸ = 1241392729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570986 + ... + 573155.

It is an arithmetic number, because the mean of its divisors is an integer number (109837632).

Almost surely, 2^1241392985 is an apocalyptic number.

It is an amenable number.

1241392985 is a deficient number, since it is larger than the sum of its proper divisors (516009127).

1241392985 is a wasteful number, since it uses less digits than its factorization.

1241392985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144184.

The product of its digits is 155520, while the sum is 44.

The square root of 1241392985 is about 35233.4072295031. The cubic root of 1241392985 is about 1074.7392149094.

The spelling of 1241392985 in words is "one billion, two hundred forty-one million, three hundred ninety-two thousand, nine hundred eighty-five".