1241399825 has 24 divisors (see below), whose sum is σ = 1569274560. Its totient is φ = 973889600.

The previous prime is 1241399779. The next prime is 1241399843. The reversal of 1241399825 is 5289931421.

It is a de Polignac number, because none of the positive numbers 2^k-1241399825 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 820820 + ... + 822330.

It is an arithmetic number, because the mean of its divisors is an integer number (65386440).

Almost surely, 2^1241399825 is an apocalyptic number.

It is an amenable number.

1241399825 is a deficient number, since it is larger than the sum of its proper divisors (327874735).

1241399825 is a wasteful number, since it uses less digits than its factorization.

1241399825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137 (or 2132 counting only the distinct ones).

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

The square root of 1241399825 is about 35233.5042963370. The cubic root of 1241399825 is about 1074.7411888218.

The spelling of 1241399825 in words is "one billion, two hundred forty-one million, three hundred ninety-nine thousand, eight hundred twenty-five".