84142554 has 32 divisors (see below), whose sum is σ = 179936640. Its totient is φ = 26138112.

The previous prime is 84142547. The next prime is 84142559. The reversal of 84142554 is 45524148.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (84142559) 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, 6502 + ... + 14510.

It is an arithmetic number, because the mean of its divisors is an integer number (5623020).

Almost surely, 2^84142554 is an apocalyptic number.

84142554 is an abundant number, since it is smaller than the sum of its proper divisors (95794086).

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

84142554 is a wasteful number, since it uses less digits than its factorization.

84142554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8134.

The product of its digits is 25600, while the sum is 33.

The square root of 84142554 is about 9172.9250514762. The cubic root of 84142554 is about 438.1995192004.

The spelling of 84142554 in words is "eighty-four million, one hundred forty-two thousand, five hundred fifty-four".