133986970 has 32 divisors (see below), whose sum is σ = 260402688. Its totient is φ = 49343808.

The previous prime is 133986961. The next prime is 133986971. The reversal of 133986970 is 79689331.

It is a self number, because there is not a number n which added to its sum of digits gives 133986970.

It is not an unprimeable number, because it can be changed into a prime (133986971) 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, 59607 + ... + 61813.

It is an arithmetic number, because the mean of its divisors is an integer number (8137584).

Almost surely, 2^133986970 is an apocalyptic number.

133986970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133986970 is a deficient number, since it is larger than the sum of its proper divisors (126415718).

133986970 is a wasteful number, since it uses less digits than its factorization.

133986970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 133986970 is about 11575.2740788285. The cubic root of 133986970 is about 511.7064077092.

The spelling of 133986970 in words is "one hundred thirty-three million, nine hundred eighty-six thousand, nine hundred seventy".