747158381 has 8 divisors (see below), whose sum is σ = 825505344. Its totient is φ = 672633280.

The previous prime is 747158333. The next prime is 747158393. The reversal of 747158381 is 183851747.

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

It is a cyclic number.

It is not a de Polignac number, because 747158381 - 2²² = 742964077 is a prime.

It is a super-2 number, since 2×747158381² = 1116491292597082322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747158981) 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, 955055 + ... + 955836.

It is an arithmetic number, because the mean of its divisors is an integer number (103188168).

Almost surely, 2^747158381 is an apocalyptic number.

It is an amenable number.

747158381 is a deficient number, since it is larger than the sum of its proper divisors (78346963).

747158381 is a wasteful number, since it uses less digits than its factorization.

747158381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910931.

The product of its digits is 188160, while the sum is 44.

The square root of 747158381 is about 27334.1980127459. The cubic root of 747158381 is about 907.4113854284.

The spelling of 747158381 in words is "seven hundred forty-seven million, one hundred fifty-eight thousand, three hundred eighty-one".