132749778 has 16 divisors (see below), whose sum is σ = 303428160. Its totient is φ = 37928496.

The previous prime is 132749777. The next prime is 132749779. The reversal of 132749778 is 877947231.

It is an interprime number because it is at equal distance from previous prime (132749777) and next prime (132749779).

It is not an unprimeable number, because it can be changed into a prime (132749777) 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, 1580313 + ... + 1580396.

It is an arithmetic number, because the mean of its divisors is an integer number (18964260).

Almost surely, 2^132749778 is an apocalyptic number.

132749778 is an abundant number, since it is smaller than the sum of its proper divisors (170678382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132749778 is a wasteful number, since it uses less digits than its factorization.

132749778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160721.

The product of its digits is 592704, while the sum is 48.

The square root of 132749778 is about 11521.7089878195. The cubic root of 132749778 is about 510.1265583646.

The spelling of 132749778 in words is "one hundred thirty-two million, seven hundred forty-nine thousand, seven hundred seventy-eight".