146381572 has 6 divisors (see below), whose sum is σ = 256167758. Its totient is φ = 73190784.

The previous prime is 146381561. The next prime is 146381581. The reversal of 146381572 is 275183641.

It can be written as a sum of positive squares in only one way, i.e., 102900736 + 43480836 = 10144^2 + 6594^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18297693 + ... + 18297700.

Almost surely, 2^146381572 is an apocalyptic number.

It is an amenable number.

146381572 is a deficient number, since it is larger than the sum of its proper divisors (109786186).

146381572 is a wasteful number, since it uses less digits than its factorization.

146381572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36595397 (or 36595395 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 146381572 is about 12098.8252322281. The cubic root of 146381572 is about 527.0220697514.

The spelling of 146381572 in words is "one hundred forty-six million, three hundred eighty-one thousand, five hundred seventy-two".