15400202149 has 8 divisors (see below), whose sum is σ = 15557288472. Its totient is φ = 15243206400.

The previous prime is 15400202143. The next prime is 15400202159. The reversal of 15400202149 is 94120200451.

It can be written as a sum of positive squares in 4 ways, for example, as 4294836225 + 11105365924 = 65535^2 + 105382^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15400202149 - 2⁹ = 15400201637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15400202143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350217 + ... + 391729.

It is an arithmetic number, because the mean of its divisors is an integer number (1944661059).

Almost surely, 2^15400202149 is an apocalyptic number.

It is an amenable number.

15400202149 is a deficient number, since it is larger than the sum of its proper divisors (157086323).

15400202149 is a wasteful number, since it uses less digits than its factorization.

15400202149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45287.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 15400202149 in words is "fifteen billion, four hundred million, two hundred two thousand, one hundred forty-nine".