146556749 has 4 divisors (see below), whose sum is σ = 151610460. Its totient is φ = 141503040.

The previous prime is 146556733. The next prime is 146556769. The reversal of 146556749 is 947655641.

146556749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 106234249 + 40322500 = 10307^2 + 6350^2 .

It is a cyclic number.

It is not a de Polignac number, because 146556749 - 2⁴ = 146556733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146556719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2526812 + ... + 2526869.

It is an arithmetic number, because the mean of its divisors is an integer number (37902615).

Almost surely, 2^146556749 is an apocalyptic number.

It is an amenable number.

146556749 is a deficient number, since it is larger than the sum of its proper divisors (5053711).

146556749 is an equidigital number, since it uses as much as digits as its factorization.

146556749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053710.

The product of its digits is 907200, while the sum is 47.

The square root of 146556749 is about 12106.0624895133. The cubic root of 146556749 is about 527.2322176558.

The spelling of 146556749 in words is "one hundred forty-six million, five hundred fifty-six thousand, seven hundred forty-nine".