133401142 has 32 divisors (see below), whose sum is σ = 243093312. Its totient is φ = 53597184.

The previous prime is 133401089. The next prime is 133401143. The reversal of 133401142 is 241104331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133401143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68778 + ... + 70690.

It is an arithmetic number, because the mean of its divisors is an integer number (7596666).

Almost surely, 2^133401142 is an apocalyptic number.

133401142 is a deficient number, since it is larger than the sum of its proper divisors (109692170).

133401142 is a wasteful number, since it uses less digits than its factorization.

133401142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 133401142 is about 11549.9412119716. The cubic root of 133401142 is about 510.9595442867.

Adding to 133401142 its reverse (241104331), we get a palindrome (374505473).

The spelling of 133401142 in words is "one hundred thirty-three million, four hundred one thousand, one hundred forty-two".