747260138 has 4 divisors (see below), whose sum is σ = 1120890210. Its totient is φ = 373630068.

The previous prime is 747260119. The next prime is 747260141. The reversal of 747260138 is 831062747.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 744580369 + 2679769 = 27287^2 + 1637^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186815033 + ... + 186815036.

Almost surely, 2^747260138 is an apocalyptic number.

747260138 is a deficient number, since it is larger than the sum of its proper divisors (373630072).

747260138 is a wasteful number, since it uses less digits than its factorization.

747260138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373630071.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 747260138 is about 27336.0592990285. The cubic root of 747260138 is about 907.4525776179.

The spelling of 747260138 in words is "seven hundred forty-seven million, two hundred sixty thousand, one hundred thirty-eight".