146321636 has 6 divisors (see below), whose sum is σ = 256062870. Its totient is φ = 73160816.

The previous prime is 146321633. The next prime is 146321639. The reversal of 146321636 is 636123641.

It is an interprime number because it is at equal distance from previous prime (146321633) and next prime (146321639).

It can be written as a sum of positive squares in only one way, i.e., 100000000 + 46321636 = 10000^2 + 6806^2 .

It is not an unprimeable number, because it can be changed into a prime (146321633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18290201 + ... + 18290208.

It is an arithmetic number, because the mean of its divisors is an integer number (42677145).

Almost surely, 2^146321636 is an apocalyptic number.

It is an amenable number.

146321636 is a deficient number, since it is larger than the sum of its proper divisors (109741234).

146321636 is a wasteful number, since it uses less digits than its factorization.

146321636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36580413 (or 36580411 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 146321636 is about 12096.3480439346. The cubic root of 146321636 is about 526.9501301247.

The spelling of 146321636 in words is "one hundred forty-six million, three hundred twenty-one thousand, six hundred thirty-six".