1542212523 has 12 divisors (see below), whose sum is σ = 2236518648. Its totient is φ = 1024044000.

The previous prime is 1542212519. The next prime is 1542212533. The reversal of 1542212523 is 3252122451.

It is not a de Polignac number, because 1542212523 - 2² = 1542212519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1542212533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339090 + ... + 343607.

It is an arithmetic number, because the mean of its divisors is an integer number (186376554).

Almost surely, 2^1542212523 is an apocalyptic number.

1542212523 is a deficient number, since it is larger than the sum of its proper divisors (694306125).

1542212523 is a wasteful number, since it uses less digits than its factorization.

1542212523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682954 (or 682951 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 1542212523 is about 39271.0137760664. The cubic root of 1542212523 is about 1155.3531207912.

Adding to 1542212523 its reverse (3252122451), we get a palindrome (4794334974).

The spelling of 1542212523 in words is "one billion, five hundred forty-two million, two hundred twelve thousand, five hundred twenty-three".