146397772 has 6 divisors (see below), whose sum is σ = 256196108. Its totient is φ = 73198884.

The previous prime is 146397763. The next prime is 146397773. The reversal of 146397772 is 277793641.

146397772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (146397773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18299718 + ... + 18299725.

Almost surely, 2^146397772 is an apocalyptic number.

It is an amenable number.

146397772 is a deficient number, since it is larger than the sum of its proper divisors (109798336).

146397772 is a wasteful number, since it uses less digits than its factorization.

146397772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36599447 (or 36599445 counting only the distinct ones).

The product of its digits is 444528, while the sum is 46.

The square root of 146397772 is about 12099.4947001931. The cubic root of 146397772 is about 527.0415108201.

It can be divided in two parts, 1463 and 97772, that added together give a triangular number (99235 = T₄₄₅).

The spelling of 146397772 in words is "one hundred forty-six million, three hundred ninety-seven thousand, seven hundred seventy-two".