147621546 has 12 divisors (see below), whose sum is σ = 319846722. Its totient is φ = 49207176.

The previous prime is 147621517. The next prime is 147621553. The reversal of 147621546 is 645126741.

It can be written as a sum of positive squares in only one way, i.e., 80299521 + 67322025 = 8961^2 + 8205^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 147621546.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4100581 + ... + 4100616.

Almost surely, 2^147621546 is an apocalyptic number.

147621546 is an abundant number, since it is smaller than the sum of its proper divisors (172225176).

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

147621546 is a wasteful number, since it uses less digits than its factorization.

147621546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8201205 (or 8201202 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 147621546 is about 12149.9607406773. The cubic root of 147621546 is about 528.5059930753.

The spelling of 147621546 in words is "one hundred forty-seven million, six hundred twenty-one thousand, five hundred forty-six".