747062138 has 4 divisors (see below), whose sum is σ = 1120593210. Its totient is φ = 373531068.

The previous prime is 747062131. The next prime is 747062143. The reversal of 747062138 is 831260747.

747062138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831260747 = 17 ⋅48897691.

It can be written as a sum of positive squares in only one way, i.e., 685549489 + 61512649 = 26183^2 + 7843^2 .

It is not an unprimeable number, because it can be changed into a prime (747062131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186765533 + ... + 186765536.

Almost surely, 2^747062138 is an apocalyptic number.

747062138 is a deficient number, since it is larger than the sum of its proper divisors (373531072).

747062138 is a wasteful number, since it uses less digits than its factorization.

747062138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373531071.

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

The square root of 747062138 is about 27332.4374690586. The cubic root of 747062138 is about 907.3724219162.

The spelling of 747062138 in words is "seven hundred forty-seven million, sixty-two thousand, one hundred thirty-eight".