15149423 has 2 divisors, whose sum is σ = 15149424. Its totient is φ = 15149422.

The previous prime is 15149419. The next prime is 15149429. The reversal of 15149423 is 32494151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15149423 - 2² = 15149419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15149429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7574711 + 7574712.

It is an arithmetic number, because the mean of its divisors is an integer number (7574712).

Almost surely, 2^15149423 is an apocalyptic number.

15149423 is a deficient number, since it is larger than the sum of its proper divisors (1).

15149423 is an equidigital number, since it uses as much as digits as its factorization.

15149423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 15149423 is about 3892.2259698019. The cubic root of 15149423 is about 247.4374116472.

The spelling of 15149423 in words is "fifteen million, one hundred forty-nine thousand, four hundred twenty-three".