1541140225 has 12 divisors (see below), whose sum is σ = 1922065596. Its totient is φ = 1225782080.

The previous prime is 1541140163. The next prime is 1541140229. The reversal of 1541140225 is 5220411451.

It can be written as a sum of positive squares in 6 ways, for example, as 10061584 + 1531078641 = 3172^2 + 39129^2 .

It is not a de Polignac number, because 1541140225 - 2⁹ = 1541139713 is a prime.

It is a super-2 number, since 2×1541140225² = 4750226386226101250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 1541140225.

It is not an unprimeable number, because it can be changed into a prime (1541140229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173842 + ... + 182491.

It is an arithmetic number, because the mean of its divisors is an integer number (160172133).

Almost surely, 2^1541140225 is an apocalyptic number.

It is an amenable number.

1541140225 is a deficient number, since it is larger than the sum of its proper divisors (380925371).

1541140225 is a wasteful number, since it uses less digits than its factorization.

1541140225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356516 (or 356511 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1541140225 is about 39257.3588642945. The cubic root of 1541140225 is about 1155.0852869563.

Adding to 1541140225 its reverse (5220411451), we get a palindrome (6761551676).

The spelling of 1541140225 in words is "one billion, five hundred forty-one million, one hundred forty thousand, two hundred twenty-five".