36121739 has 2 divisors, whose sum is σ = 36121740. Its totient is φ = 36121738.

The previous prime is 36121703. The next prime is 36121751. The reversal of 36121739 is 93712163.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36121739 - 2⁸ = 36121483 is a prime.

It is not a weakly prime, because it can be changed into another prime (36121759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18060869 + 18060870.

It is an arithmetic number, because the mean of its divisors is an integer number (18060870).

Almost surely, 2^36121739 is an apocalyptic number.

36121739 is a deficient number, since it is larger than the sum of its proper divisors (1).

36121739 is an equidigital number, since it uses as much as digits as its factorization.

36121739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 32.

The square root of 36121739 is about 6010.1363545264. The cubic root of 36121739 is about 330.5645036498.

The spelling of 36121739 in words is "thirty-six million, one hundred twenty-one thousand, seven hundred thirty-nine".