133961894 has 16 divisors (see below), whose sum is σ = 230748480. Its totient is φ = 57686760.

The previous prime is 133961857. The next prime is 133961897. The reversal of 133961894 is 498169331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133961897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159824 + ... + 160659.

It is an arithmetic number, because the mean of its divisors is an integer number (14421780).

Almost surely, 2^133961894 is an apocalyptic number.

133961894 is a deficient number, since it is larger than the sum of its proper divisors (96786586).

133961894 is a wasteful number, since it uses less digits than its factorization.

133961894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320515.

The product of its digits is 139968, while the sum is 44.

The square root of 133961894 is about 11574.1908572479. The cubic root of 133961894 is about 511.6744833352.

The spelling of 133961894 in words is "one hundred thirty-three million, nine hundred sixty-one thousand, eight hundred ninety-four".