754247138 has 8 divisors (see below), whose sum is σ = 1170383580. Its totient is φ = 364119280.

The previous prime is 754247113. The next prime is 754247147. The reversal of 754247138 is 831742457.

It can be written as a sum of positive squares in 2 ways, for example, as 743271169 + 10975969 = 27263^2 + 3313^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 754247095 and 754247104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6502073 + ... + 6502188.

Almost surely, 2^754247138 is an apocalyptic number.

754247138 is a deficient number, since it is larger than the sum of its proper divisors (416136442).

754247138 is a wasteful number, since it uses less digits than its factorization.

754247138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13004292.

The product of its digits is 188160, while the sum is 41.

The square root of 754247138 is about 27463.5601843607. The cubic root of 754247138 is about 910.2720830335.

The spelling of 754247138 in words is "seven hundred fifty-four million, two hundred forty-seven thousand, one hundred thirty-eight".