749139511 has 2 divisors, whose sum is σ = 749139512. Its totient is φ = 749139510.

The previous prime is 749139499. The next prime is 749139551. The reversal of 749139511 is 115931947.

It is an a-pointer prime, because the next prime (749139551) can be obtained adding 749139511 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 749139511 - 2¹¹ = 749137463 is a prime.

It is a super-2 number, since 2×749139511² = 1122420013882638242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749139551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374569755 + 374569756.

It is an arithmetic number, because the mean of its divisors is an integer number (374569756).

Almost surely, 2^749139511 is an apocalyptic number.

749139511 is a deficient number, since it is larger than the sum of its proper divisors (1).

749139511 is an equidigital number, since it uses as much as digits as its factorization.

749139511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 40.

The square root of 749139511 is about 27370.4130586296. The cubic root of 749139511 is about 908.2126940493.

The spelling of 749139511 in words is "seven hundred forty-nine million, one hundred thirty-nine thousand, five hundred eleven".