146557332 has 18 divisors (see below), whose sum is σ = 370464458. Its totient is φ = 48852432.

The previous prime is 146557273. The next prime is 146557337. The reversal of 146557332 is 233755641.

It can be written as a sum of positive squares in only one way, i.e., 110124036 + 36433296 = 10494^2 + 6036^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4071037 = 146557332 / (1 + 4 + 6 + 5 + 5 + 7 + 3 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146557337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2035483 + ... + 2035554.

Almost surely, 2^146557332 is an apocalyptic number.

146557332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

146557332 is an abundant number, since it is smaller than the sum of its proper divisors (223907126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146557332 is a wasteful number, since it uses less digits than its factorization.

146557332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071047 (or 4071042 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 146557332 is about 12106.0865683341. The cubic root of 146557332 is about 527.2329167615.

The spelling of 146557332 in words is "one hundred forty-six million, five hundred fifty-seven thousand, three hundred thirty-two".