39155093 has 2 divisors, whose sum is σ = 39155094. Its totient is φ = 39155092.

The previous prime is 39155071. The next prime is 39155099. The reversal of 39155093 is 39055193.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35976004 + 3179089 = 5998^2 + 1783^2 .

It is an emirp because it is prime and its reverse (39055193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39155093 - 2⁸ = 39154837 is a prime.

It is equal to p_2385296 and since 39155093 and 2385296 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39155099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19577546 + 19577547.

It is an arithmetic number, because the mean of its divisors is an integer number (19577547).

Almost surely, 2^39155093 is an apocalyptic number.

It is an amenable number.

39155093 is a deficient number, since it is larger than the sum of its proper divisors (1).

39155093 is an equidigital number, since it uses as much as digits as its factorization.

39155093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18225, while the sum is 35.

The square root of 39155093 is about 6257.4030555814. The cubic root of 39155093 is about 339.5700823347.

The spelling of 39155093 in words is "thirty-nine million, one hundred fifty-five thousand, ninety-three".