133522450 has 12 divisors (see below), whose sum is σ = 248351850. Its totient is φ = 53408960.

The previous prime is 133522399. The next prime is 133522453. The reversal of 133522450 is 54225331.

It can be written as a sum of positive squares in 3 ways, for example, as 89472681 + 44049769 = 9459^2 + 6637^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (133522453) 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, 1335175 + ... + 1335274.

Almost surely, 2^133522450 is an apocalyptic number.

133522450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133522450 is a deficient number, since it is larger than the sum of its proper divisors (114829400).

133522450 is a wasteful number, since it uses less digits than its factorization.

133522450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670461 (or 2670456 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 133522450 is about 11555.1914739653. The cubic root of 133522450 is about 511.1143772983.

Adding to 133522450 its reverse (54225331), we get a palindrome (187747781).

The spelling of 133522450 in words is "one hundred thirty-three million, five hundred twenty-two thousand, four hundred fifty".