1241525545 has 24 divisors (see below), whose sum is σ = 1616642496. Its totient is φ = 914891328.

The previous prime is 1241525543. The next prime is 1241525557. The reversal of 1241525545 is 5455251421.

It is not a de Polignac number, because 1241525545 - 2¹ = 1241525543 is a prime.

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 1241525545.

It is not an unprimeable number, because it can be changed into a prime (1241525543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 494764 + ... + 497266.

It is an arithmetic number, because the mean of its divisors is an integer number (67360104).

Almost surely, 2^1241525545 is an apocalyptic number.

It is an amenable number.

1241525545 is a deficient number, since it is larger than the sum of its proper divisors (375116951).

1241525545 is a wasteful number, since it uses less digits than its factorization.

1241525545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121 (or 3108 counting only the distinct ones).

The product of its digits is 40000, while the sum is 34.

The square root of 1241525545 is about 35235.2883484725. The cubic root of 1241525545 is about 1074.7774682698. Note that the first 3 decimals are identical.

Adding to 1241525545 its reverse (5455251421), we get a palindrome (6696776966).

The spelling of 1241525545 in words is "one billion, two hundred forty-one million, five hundred twenty-five thousand, five hundred forty-five".