36154991 has 2 divisors, whose sum is σ = 36154992. Its totient is φ = 36154990.

The previous prime is 36154981. The next prime is 36154997. The reversal of 36154991 is 19945163.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36154991 - 2⁶ = 36154927 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36154997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18077495 + 18077496.

It is an arithmetic number, because the mean of its divisors is an integer number (18077496).

Almost surely, 2^36154991 is an apocalyptic number.

36154991 is a deficient number, since it is larger than the sum of its proper divisors (1).

36154991 is an equidigital number, since it uses as much as digits as its factorization.

36154991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 38.

The square root of 36154991 is about 6012.9020447701. The cubic root of 36154991 is about 330.6659066647.

The spelling of 36154991 in words is "thirty-six million, one hundred fifty-four thousand, nine hundred ninety-one".