133401532 has 18 divisors (see below), whose sum is σ = 256605944. Its totient is φ = 60636840.

The previous prime is 133401517. The next prime is 133401551. The reversal of 133401532 is 235104331.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 137328 + ... + 138295.

Almost surely, 2^133401532 is an apocalyptic number.

It is an amenable number.

133401532 is a deficient number, since it is larger than the sum of its proper divisors (123204412).

133401532 is a wasteful number, since it uses less digits than its factorization.

133401532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275649 (or 275636 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 133401532 is about 11549.9580951621. The cubic root of 133401532 is about 510.9600422185.

Adding to 133401532 its reverse (235104331), we get a palindrome (368505863).

The spelling of 133401532 in words is "one hundred thirty-three million, four hundred one thousand, five hundred thirty-two".