1520545542 has 16 divisors (see below), whose sum is σ = 3069513792. Its totient is φ = 502111400.

The previous prime is 1520545517. The next prime is 1520545561. The reversal of 1520545542 is 2455450251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183584 + ... + 1184867.

It is an arithmetic number, because the mean of its divisors is an integer number (191844612).

Almost surely, 2^1520545542 is an apocalyptic number.

1520545542 is an abundant number, since it is smaller than the sum of its proper divisors (1548968250).

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

1520545542 is a wasteful number, since it uses less digits than its factorization.

1520545542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368563.

The product of its (nonzero) digits is 40000, while the sum is 33.

The square root of 1520545542 is about 38994.1731801047. The cubic root of 1520545542 is about 1149.9169548097.

Adding to 1520545542 its reverse (2455450251), we get a palindrome (3975995793).

The spelling of 1520545542 in words is "one billion, five hundred twenty million, five hundred forty-five thousand, five hundred forty-two".