133231434 has 32 divisors (see below), whose sum is σ = 308206080. Its totient is φ = 37606512.

The previous prime is 133231411. The next prime is 133231457. The reversal of 133231434 is 434132331.

It is an interprime number because it is at equal distance from previous prime (133231411) and next prime (133231457).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15624 + ... + 22595.

It is an arithmetic number, because the mean of its divisors is an integer number (9631440).

Almost surely, 2^133231434 is an apocalyptic number.

133231434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

133231434 is an abundant number, since it is smaller than the sum of its proper divisors (174974646).

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

133231434 is a wasteful number, since it uses less digits than its factorization.

133231434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38314.

The product of its digits is 2592, while the sum is 24.

The square root of 133231434 is about 11542.5921698724. The cubic root of 133231434 is about 510.7427777272.

Adding to 133231434 its reverse (434132331), we get a palindrome (567363765).

The spelling of 133231434 in words is "one hundred thirty-three million, two hundred thirty-one thousand, four hundred thirty-four".