153379991 has 2 divisors, whose sum is σ = 153379992. Its totient is φ = 153379990.

The previous prime is 153379987. The next prime is 153380009. The reversal of 153379991 is 199973351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 153379991 - 2² = 153379987 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153379901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76689995 + 76689996.

It is an arithmetic number, because the mean of its divisors is an integer number (76689996).

Almost surely, 2^153379991 is an apocalyptic number.

153379991 is a deficient number, since it is larger than the sum of its proper divisors (1).

153379991 is an equidigital number, since it uses as much as digits as its factorization.

153379991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 229635, while the sum is 47.

The square root of 153379991 is about 12384.6675772909. The cubic root of 153379991 is about 535.2905412300.

The spelling of 153379991 in words is "one hundred fifty-three million, three hundred seventy-nine thousand, nine hundred ninety-one".