921150739 has 2 divisors, whose sum is σ = 921150740. Its totient is φ = 921150738.

The previous prime is 921150707. The next prime is 921150743. The reversal of 921150739 is 937051129.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 921150739 - 2⁵ = 921150707 is a prime.

It is a super-2 number, since 2×921150739² = 1697037367920492242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 921150698 and 921150707.

It is not a weakly prime, because it can be changed into another prime (921160739) by changing a digit.

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 as a sum of consecutive naturals, namely, 460575369 + 460575370.

It is an arithmetic number, because the mean of its divisors is an integer number (460575370).

Almost surely, 2^921150739 is an apocalyptic number.

921150739 is a deficient number, since it is larger than the sum of its proper divisors (1).

921150739 is an equidigital number, since it uses as much as digits as its factorization.

921150739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 921150739 is about 30350.4652188397. The cubic root of 921150739 is about 972.9941630254.

The spelling of 921150739 in words is "nine hundred twenty-one million, one hundred fifty thousand, seven hundred thirty-nine".