146276139 has 4 divisors (see below), whose sum is σ = 195034856. Its totient is φ = 97517424.

The previous prime is 146276111. The next prime is 146276149. The reversal of 146276139 is 931672641.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 146276139 - 2¹⁵ = 146243371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146276097 and 146276106.

It is not an unprimeable number, because it can be changed into a prime (146276149) 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 3 ways as a sum of consecutive naturals, for example, 24379354 + ... + 24379359.

It is an arithmetic number, because the mean of its divisors is an integer number (48758714).

Almost surely, 2^146276139 is an apocalyptic number.

146276139 is a deficient number, since it is larger than the sum of its proper divisors (48758717).

146276139 is an equidigital number, since it uses as much as digits as its factorization.

146276139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48758716.

The product of its digits is 54432, while the sum is 39.

The square root of 146276139 is about 12094.4672888061. The cubic root of 146276139 is about 526.8955081379.

The spelling of 146276139 in words is "one hundred forty-six million, two hundred seventy-six thousand, one hundred thirty-nine".