142521043 has 32 divisors (see below), whose sum is σ = 175214592. Its totient is φ = 113356800.

The previous prime is 142521019. The next prime is 142521059. The reversal of 142521043 is 340125241.

It is a de Polignac number, because none of the positive numbers 2^k-142521043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142521083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 738355 + ... + 738547.

It is an arithmetic number, because the mean of its divisors is an integer number (5475456).

Almost surely, 2^142521043 is an apocalyptic number.

142521043 is a deficient number, since it is larger than the sum of its proper divisors (32693549).

142521043 is a wasteful number, since it uses less digits than its factorization.

142521043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 142521043 is about 11938.2177480560. The cubic root of 142521043 is about 522.3476726044.

Adding to 142521043 its reverse (340125241), we get a palindrome (482646284).

The spelling of 142521043 in words is "one hundred forty-two million, five hundred twenty-one thousand, forty-three".