1541520252 has 18 divisors (see below), whose sum is σ = 3896620728. Its totient is φ = 513840072.

The previous prime is 1541520251. The next prime is 1541520319. The reversal of 1541520252 is 2520251451.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1541520252² = 4752569374652287008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1541520251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21409968 + ... + 21410039.

Almost surely, 2^1541520252 is an apocalyptic number.

1541520252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1541520252 is an abundant number, since it is smaller than the sum of its proper divisors (2355100476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1541520252 is a wasteful number, since it uses less digits than its factorization.

1541520252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42820017 (or 42820012 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1541520252 is about 39262.1987667527. The cubic root of 1541520252 is about 1155.1802226221.

The spelling of 1541520252 in words is "one billion, five hundred forty-one million, five hundred twenty thousand, two hundred fifty-two".