146242779 has 16 divisors (see below), whose sum is σ = 202358784. Its totient is φ = 93844800.

The previous prime is 146242771. The next prime is 146242783. The reversal of 146242779 is 977242641.

It is not a de Polignac number, because 146242779 - 2³ = 146242771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146242779.

It is not an unprimeable number, because it can be changed into a prime (146242771) 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, 13647 + ... + 21879.

It is an arithmetic number, because the mean of its divisors is an integer number (12647424).

Almost surely, 2^146242779 is an apocalyptic number.

146242779 is a deficient number, since it is larger than the sum of its proper divisors (56116005).

146242779 is a wasteful number, since it uses less digits than its factorization.

146242779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8458.

The product of its digits is 169344, while the sum is 42.

The square root of 146242779 is about 12093.0880671564. The cubic root of 146242779 is about 526.8554501793.

The spelling of 146242779 in words is "one hundred forty-six million, two hundred forty-two thousand, seven hundred seventy-nine".