1520227545 has 16 divisors (see below), whose sum is σ = 2436637632. Its totient is φ = 809363520.

The previous prime is 1520227537. The next prime is 1520227603. The reversal of 1520227545 is 5457220251.

It is not a de Polignac number, because 1520227545 - 2³ = 1520227537 is a prime.

It is a super-2 number, since 2×1520227545² = 4622183577153454050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80182 + ... + 97311.

It is an arithmetic number, because the mean of its divisors is an integer number (152289852).

Almost surely, 2^1520227545 is an apocalyptic number.

1520227545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1520227545 is a deficient number, since it is larger than the sum of its proper divisors (916410087).

1520227545 is a wasteful number, since it uses less digits than its factorization.

1520227545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178072.

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 1520227545 is about 38990.0954730814. The cubic root of 1520227545 is about 1149.8367871712.

Adding to 1520227545 its reverse (5457220251), we get a palindrome (6977447796).

The spelling of 1520227545 in words is "one billion, five hundred twenty million, two hundred twenty-seven thousand, five hundred forty-five".