133998051 has 16 divisors (see below), whose sum is σ = 205165440. Its totient is φ = 76936320.

The previous prime is 133998049. The next prime is 133998071. The reversal of 133998051 is 150899331.

It is not a de Polignac number, because 133998051 - 2¹ = 133998049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133998041) 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, 106230 + ... + 107483.

It is an arithmetic number, because the mean of its divisors is an integer number (12822840).

Almost surely, 2^133998051 is an apocalyptic number.

133998051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133998051 is a deficient number, since it is larger than the sum of its proper divisors (71167389).

133998051 is a wasteful number, since it uses less digits than its factorization.

133998051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213746.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 133998051 is about 11575.7527185060. The cubic root of 133998051 is about 511.7205137137.

The spelling of 133998051 in words is "one hundred thirty-three million, nine hundred ninety-eight thousand, fifty-one".