1521141545 has 40 divisors (see below), whose sum is σ = 2323261440. Its totient is φ = 948161760.

The previous prime is 1521141529. The next prime is 1521141613. The reversal of 1521141545 is 5451411251.

It is not a de Polignac number, because 1521141545 - 2⁴ = 1521141529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 126296 + ... + 137814.

It is an arithmetic number, because the mean of its divisors is an integer number (58081536).

Almost surely, 2^1521141545 is an apocalyptic number.

It is an amenable number.

1521141545 is a deficient number, since it is larger than the sum of its proper divisors (802119895).

1521141545 is an equidigital number, since it uses as much as digits as its factorization.

1521141545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11563 (or 11542 counting only the distinct ones).

The product of its digits is 4000, while the sum is 29.

The square root of 1521141545 is about 39001.8146372704. The cubic root of 1521141545 is about 1150.0671781803.

Adding to 1521141545 its reverse (5451411251), we get a palindrome (6972552796).

The spelling of 1521141545 in words is "one billion, five hundred twenty-one million, one hundred forty-one thousand, five hundred forty-five".