15400940153 has 2 divisors, whose sum is σ = 15400940154. Its totient is φ = 15400940152.

The previous prime is 15400940123. The next prime is 15400940179. The reversal of 15400940153 is 35104900451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13428869689 + 1972070464 = 115883^2 + 44408^2 .

It is an emirp because it is prime and its reverse (35104900451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15400940153 - 2¹⁸ = 15400678009 is a prime.

It is not a weakly prime, because it can be changed into another prime (15400940123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7700470076 + 7700470077.

It is an arithmetic number, because the mean of its divisors is an integer number (7700470077).

Almost surely, 2^15400940153 is an apocalyptic number.

It is an amenable number.

15400940153 is a deficient number, since it is larger than the sum of its proper divisors (1).

15400940153 is an equidigital number, since it uses as much as digits as its factorization.

15400940153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 15400940153 in words is "fifteen billion, four hundred million, nine hundred forty thousand, one hundred fifty-three".