142628541 has 8 divisors (see below), whose sum is σ = 207459744. Its totient is φ = 86441520.

The previous prime is 142628537. The next prime is 142628561. The reversal of 142628541 is 145826241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142628541 - 2² = 142628537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 4322077 = 142628541 / (1 + 4 + 2 + 6 + 2 + 8 + 5 + 4 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142628501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2161006 + ... + 2161071.

It is an arithmetic number, because the mean of its divisors is an integer number (25932468).

Almost surely, 2^142628541 is an apocalyptic number.

142628541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142628541 is a deficient number, since it is larger than the sum of its proper divisors (64831203).

142628541 is a wasteful number, since it uses less digits than its factorization.

142628541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322091.

The product of its digits is 15360, while the sum is 33.

The square root of 142628541 is about 11942.7191627368. The cubic root of 142628541 is about 522.4789683468.

The spelling of 142628541 in words is "one hundred forty-two million, six hundred twenty-eight thousand, five hundred forty-one".