133401530 has 16 divisors (see below), whose sum is σ = 244654344. Its totient is φ = 52353600.

The previous prime is 133401517. The next prime is 133401551. The reversal of 133401530 is 35104331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 101263969 + 32137561 = 10063^2 + 5669^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125321 + ... + 126380.

Almost surely, 2^133401530 is an apocalyptic number.

133401530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133401530 is a deficient number, since it is larger than the sum of its proper divisors (111252814).

133401530 is a wasteful number, since it uses less digits than its factorization.

133401530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251761.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 133401530 is about 11549.9580085817. The cubic root of 133401530 is about 510.9600396650.

Adding to 133401530 its reverse (35104331), we get a palindrome (168505861).

The spelling of 133401530 in words is "one hundred thirty-three million, four hundred one thousand, five hundred thirty".