133120690 has 16 divisors (see below), whose sum is σ = 245190528. Its totient is φ = 52009776.

The previous prime is 133120657. The next prime is 133120699. The reversal of 133120690 is 96021331.

It is a super-2 number, since 2×133120690² = 35442236212152200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133120699) 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, 154362 + ... + 155221.

It is an arithmetic number, because the mean of its divisors is an integer number (15324408).

Almost surely, 2^133120690 is an apocalyptic number.

133120690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133120690 is a deficient number, since it is larger than the sum of its proper divisors (112069838).

133120690 is a wasteful number, since it uses less digits than its factorization.

133120690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309633.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 133120690 is about 11537.7939832535. The cubic root of 133120690 is about 510.6012261044.

The spelling of 133120690 in words is "one hundred thirty-three million, one hundred twenty thousand, six hundred ninety".