1520228541 has 16 divisors (see below), whose sum is σ = 2183630400. Its totient is φ = 935208960.

The previous prime is 1520228537. The next prime is 1520228543. The reversal of 1520228541 is 1458220251.

It is not a de Polignac number, because 1520228541 - 2² = 1520228537 is a prime.

It is a super-3 number, since 3×1520228541³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1520228499 and 1520228508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520228543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170410 + ... + 179108.

It is an arithmetic number, because the mean of its divisors is an integer number (136476900).

Almost surely, 2^1520228541 is an apocalyptic number.

It is an amenable number.

1520228541 is a deficient number, since it is larger than the sum of its proper divisors (663401859).

1520228541 is a wasteful number, since it uses less digits than its factorization.

1520228541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13196.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 1520228541 is about 38990.1082455538. The cubic root of 1520228541 is about 1149.8370382821.

Adding to 1520228541 its reverse (1458220251), we get a palindrome (2978448792).

The spelling of 1520228541 in words is "one billion, five hundred twenty million, two hundred twenty-eight thousand, five hundred forty-one".