133737764 has 6 divisors (see below), whose sum is σ = 234041094. Its totient is φ = 66868880.

The previous prime is 133737761. The next prime is 133737767. The reversal of 133737764 is 467737331.

It is an interprime number because it is at equal distance from previous prime (133737761) and next prime (133737767).

It can be written as a sum of positive squares in only one way, i.e., 129777664 + 3960100 = 11392^2 + 1990^2 .

It is not an unprimeable number, because it can be changed into a prime (133737761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16717217 + ... + 16717224.

It is an arithmetic number, because the mean of its divisors is an integer number (39006849).

Almost surely, 2^133737764 is an apocalyptic number.

It is an amenable number.

133737764 is a deficient number, since it is larger than the sum of its proper divisors (100303330).

133737764 is a wasteful number, since it uses less digits than its factorization.

133737764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33434445 (or 33434443 counting only the distinct ones).

The product of its digits is 222264, while the sum is 41.

The square root of 133737764 is about 11564.5044857097. The cubic root of 133737764 is about 511.3889652785.

The spelling of 133737764 in words is "one hundred thirty-three million, seven hundred thirty-seven thousand, seven hundred sixty-four".