749223051 has 8 divisors (see below), whose sum is σ = 1000968000. Its totient is φ = 498480072.

The previous prime is 749223047. The next prime is 749223061. The reversal of 749223051 is 150322947.

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

It is not a de Polignac number, because 749223051 - 2² = 749223047 is a prime.

It is a super-2 number, since 2×749223051² = 1122670360299497202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (749223001) 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, 248745 + ... + 251738.

It is an arithmetic number, because the mean of its divisors is an integer number (125121000).

Almost surely, 2^749223051 is an apocalyptic number.

749223051 is a deficient number, since it is larger than the sum of its proper divisors (251744949).

749223051 is a wasteful number, since it uses less digits than its factorization.

749223051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500985.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 749223051 is about 27371.9391165478. The cubic root of 749223051 is about 908.2464524558.

Adding to 749223051 its reverse (150322947), we get a palindrome (899545998).

The spelling of 749223051 in words is "seven hundred forty-nine million, two hundred twenty-three thousand, fifty-one".